135438372 has 24 divisors (see below), whose sum is σ = 351136800. Its totient is φ = 45146088.

The previous prime is 135438367. The next prime is 135438377. The reversal of 135438372 is 273834531.

135438372 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135438367) and next prime (135438377).

It is a super-2 number, since 2×135438372² = 36687105220020768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

135438372 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (135438377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626922 + ... + 627137.

It is an arithmetic number, because the mean of its divisors is an integer number (14630700).

Almost surely, 2^135438372 is an apocalyptic number.

135438372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135438372 is an abundant number, since it is smaller than the sum of its proper divisors (215698428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135438372 is a wasteful number, since it uses less digits than its factorization.

135438372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254072 (or 1254064 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 135438372 is about 11637.7992764955. The cubic root of 135438372 is about 513.5474474572.

The spelling of 135438372 in words is "one hundred thirty-five million, four hundred thirty-eight thousand, three hundred seventy-two".