135471292 has 48 divisors (see below), whose sum is σ = 274538880. Its totient is φ = 57844800.

The previous prime is 135471277. The next prime is 135471299. The reversal of 135471292 is 292174531.

It is a happy number.

It is a super-2 number, since 2×135471292² = 36704941912298528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135471299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108898 + ... + 110134.

It is an arithmetic number, because the mean of its divisors is an integer number (5719560).

Almost surely, 2^135471292 is an apocalyptic number.

It is an amenable number.

135471292 is an abundant number, since it is smaller than the sum of its proper divisors (139067588).

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

135471292 is a wasteful number, since it uses less digits than its factorization.

135471292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1400 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 135471292 is about 11639.2135473150. The cubic root of 135471292 is about 513.5890521422.

The spelling of 135471292 in words is "one hundred thirty-five million, four hundred seventy-one thousand, two hundred ninety-two".