138498592 has 24 divisors (see below), whose sum is σ = 288709596. Its totient is φ = 65175552.

The previous prime is 138498587. The next prime is 138498599. The reversal of 138498592 is 295894831.

It can be written as a sum of positive squares in 2 ways, for example, as 128232976 + 10265616 = 11324^2 + 3204^2 .

It is not an unprimeable number, because it can be changed into a prime (138498599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126753 + ... + 127840.

Almost surely, 2^138498592 is an apocalyptic number.

It is an amenable number.

138498592 is an abundant number, since it is smaller than the sum of its proper divisors (150211004).

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

138498592 is a wasteful number, since it uses less digits than its factorization.

138498592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254620 (or 254612 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 138498592 is about 11768.5424755999. The cubic root of 138498592 is about 517.3865319462.

The spelling of 138498592 in words is "one hundred thirty-eight million, four hundred ninety-eight thousand, five hundred ninety-two".