138653152 has 24 divisors (see below), whose sum is σ = 297789912. Its totient is φ = 63024000.

The previous prime is 138653143. The next prime is 138653159. The reversal of 138653152 is 251356831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138653159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196599 + ... + 197302.

It is an arithmetic number, because the mean of its divisors is an integer number (12407913).

Almost surely, 2^138653152 is an apocalyptic number.

It is an amenable number.

138653152 is an abundant number, since it is smaller than the sum of its proper divisors (159136760).

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

138653152 is a wasteful number, since it uses less digits than its factorization.

138653152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393922 (or 393914 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 138653152 is about 11775.1073031204. The cubic root of 138653152 is about 517.5789226718.

The spelling of 138653152 in words is "one hundred thirty-eight million, six hundred fifty-three thousand, one hundred fifty-two".