138052532 has 24 divisors (see below), whose sum is σ = 257966016. Its totient is φ = 64487808.

The previous prime is 138052531. The next prime is 138052553. The reversal of 138052532 is 235250831.

138052532 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138052532² = 38117003183222048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138052495 and 138052504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138052531) 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, 13493 + ... + 21404.

It is an arithmetic number, because the mean of its divisors is an integer number (10748584).

Almost surely, 2^138052532 is an apocalyptic number.

It is an amenable number.

138052532 is a deficient number, since it is larger than the sum of its proper divisors (119913484).

138052532 is a wasteful number, since it uses less digits than its factorization.

138052532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34967 (or 34965 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 138052532 is about 11749.5758221308. The cubic root of 138052532 is about 516.8304886450.

The spelling of 138052532 in words is "one hundred thirty-eight million, fifty-two thousand, five hundred thirty-two".