133539492 has 24 divisors (see below), whose sum is σ = 316701952. Its totient is φ = 43783200.

The previous prime is 133539481. The next prime is 133539503. The reversal of 133539492 is 294935331.

It is an interprime number because it is at equal distance from previous prime (133539481) and next prime (133539503).

It is a self number, because there is not a number n which added to its sum of digits gives 133539492.

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, 90484 + ... + 91947.

Almost surely, 2^133539492 is an apocalyptic number.

133539492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133539492 is an abundant number, since it is smaller than the sum of its proper divisors (183162460).

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

133539492 is a wasteful number, since it uses less digits than its factorization.

133539492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182499 (or 182497 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 133539492 is about 11555.9288679015. The cubic root of 133539492 is about 511.1361215585.

The spelling of 133539492 in words is "one hundred thirty-three million, five hundred thirty-nine thousand, four hundred ninety-two".