135891492 has 24 divisors (see below), whose sum is σ = 345905952. Its totient is φ = 41179200.

The previous prime is 135891451. The next prime is 135891527. The reversal of 135891492 is 294198531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514609 + ... + 514872.

It is an arithmetic number, because the mean of its divisors is an integer number (14412748).

Almost surely, 2^135891492 is an apocalyptic number.

135891492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135891492 is an abundant number, since it is smaller than the sum of its proper divisors (210014460).

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

135891492 is a wasteful number, since it uses less digits than its factorization.

135891492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029499 (or 1029497 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 135891492 is about 11657.2506192498. The cubic root of 135891492 is about 514.1195147702.

The spelling of 135891492 in words is "one hundred thirty-five million, eight hundred ninety-one thousand, four hundred ninety-two".