138102562 has 16 divisors (see below), whose sum is σ = 224098560. Its totient is φ = 63451152.

The previous prime is 138102527. The next prime is 138102563. The reversal of 138102562 is 265201831.

It is a self number, because there is not a number n which added to its sum of digits gives 138102562.

It is not an unprimeable number, because it can be changed into a prime (138102563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6112 + ... + 17707.

It is an arithmetic number, because the mean of its divisors is an integer number (14006160).

Almost surely, 2^138102562 is an apocalyptic number.

138102562 is a deficient number, since it is larger than the sum of its proper divisors (85995998).

138102562 is a wasteful number, since it uses less digits than its factorization.

138102562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24057.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 138102562 is about 11751.7046423062. The cubic root of 138102562 is about 516.8929139312.

The spelling of 138102562 in words is "one hundred thirty-eight million, one hundred two thousand, five hundred sixty-two".