135302431 has 8 divisors (see below), whose sum is σ = 149472000. Its totient is φ = 121444440.

The previous prime is 135302423. The next prime is 135302437. The reversal of 135302431 is 134203531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135302431 - 2³ = 135302423 is a prime.

It is a super-2 number, since 2×135302431² = 36613495669019522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135302437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76981 + ... + 78718.

It is an arithmetic number, because the mean of its divisors is an integer number (18684000).

Almost surely, 2^135302431 is an apocalyptic number.

135302431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135302431 is a deficient number, since it is larger than the sum of its proper divisors (14169569).

135302431 is a wasteful number, since it uses less digits than its factorization.

135302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155789.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 135302431 is about 11631.9573159464. The cubic root of 135302431 is about 513.3755721789.

Adding to 135302431 its reverse (134203531), we get a palindrome (269505962).

The spelling of 135302431 in words is "one hundred thirty-five million, three hundred two thousand, four hundred thirty-one".