138045560 has 32 divisors (see below), whose sum is σ = 311042160. Its totient is φ = 55140096.

The previous prime is 138045541. The next prime is 138045577. The reversal of 138045560 is 65540831.

It is a happy number.

It is a congruent number.

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, 32267 + ... + 36293.

Almost surely, 2^138045560 is an apocalyptic number.

138045560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138045560 is an abundant number, since it is smaller than the sum of its proper divisors (172996600).

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

138045560 is a wasteful number, since it uses less digits than its factorization.

138045560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 138045560 is about 11749.2791268231. The cubic root of 138045560 is about 516.8217880854.

The spelling of 138045560 in words is "one hundred thirty-eight million, forty-five thousand, five hundred sixty".