138045156 has 24 divisors (see below), whose sum is σ = 322385280. Its totient is φ = 45975072.

The previous prime is 138045143. The next prime is 138045161. The reversal of 138045156 is 651540831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11590 + ... + 20258.

It is an arithmetic number, because the mean of its divisors is an integer number (13432720).

Almost surely, 2^138045156 is an apocalyptic number.

It is an amenable number.

138045156 is an abundant number, since it is smaller than the sum of its proper divisors (184340124).

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

138045156 is a wasteful number, since it uses less digits than its factorization.

138045156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003 (or 10001 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 138045156 is about 11749.2619342663. The cubic root of 138045156 is about 516.8212839132.

Adding to 138045156 its reverse (651540831), we get a palindrome (789585987).

The spelling of 138045156 in words is "one hundred thirty-eight million, forty-five thousand, one hundred fifty-six".