138560357 has 4 divisors (see below), whose sum is σ = 149218860. Its totient is φ = 127901856.

The previous prime is 138560339. The next prime is 138560363. The reversal of 138560357 is 753065831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5527201 + 133033156 = 2351^2 + 11534^2 .

It is a cyclic number.

It is not a de Polignac number, because 138560357 - 2⁸ = 138560101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138560357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138560327) 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, 5329232 + ... + 5329257.

It is an arithmetic number, because the mean of its divisors is an integer number (37304715).

Almost surely, 2^138560357 is an apocalyptic number.

It is an amenable number.

138560357 is a deficient number, since it is larger than the sum of its proper divisors (10658503).

138560357 is a wasteful number, since it uses less digits than its factorization.

138560357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10658502.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 138560357 is about 11771.1663398323. The cubic root of 138560357 is about 517.4634319575.

It can be divided in two parts, 13 and 8560357, that multiplied together give a cube (111284641 = 481³).

The spelling of 138560357 in words is "one hundred thirty-eight million, five hundred sixty thousand, three hundred fifty-seven".