135023772 has 24 divisors (see below), whose sum is σ = 339290896. Its totient is φ = 41545728.

The previous prime is 135023761. The next prime is 135023773. The reversal of 135023772 is 277320531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135023773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432613 + ... + 432924.

Almost surely, 2^135023772 is an apocalyptic number.

135023772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135023772 is an abundant number, since it is smaller than the sum of its proper divisors (204267124).

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

135023772 is a wasteful number, since it uses less digits than its factorization.

135023772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865557 (or 865555 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 135023772 is about 11619.9729775934. The cubic root of 135023772 is about 513.0228930122.

The spelling of 135023772 in words is "one hundred thirty-five million, twenty-three thousand, seven hundred seventy-two".