138153306445 has 64 divisors (see below), whose sum is σ = 230368665600. Its totient is φ = 76789416960.

The previous prime is 138153306437. The next prime is 138153306457. The reversal of 138153306445 is 544603351831.

It is not a de Polignac number, because 138153306445 - 2³ = 138153306437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431125 + ... + 679834.

It is an arithmetic number, because the mean of its divisors is an integer number (3599510400).

Almost surely, 2^138153306445 is an apocalyptic number.

It is an amenable number.

138153306445 is a deficient number, since it is larger than the sum of its proper divisors (92215359155).

138153306445 is a wasteful number, since it uses less digits than its factorization.

138153306445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111018.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 138153306445 in words is "one hundred thirty-eight billion, one hundred fifty-three million, three hundred six thousand, four hundred forty-five".