136849239122 has 6 divisors (see below), whose sum is σ = 205274643429. Its totient is φ = 68424357980.

The previous prime is 136849239077. The next prime is 136849239143. The reversal of 136849239122 is 221932948631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94544565361 + 42304673761 = 307481^2 + 205681^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=261581.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 392372 + ... + 653952.

Almost surely, 2^136849239122 is an apocalyptic number.

136849239122 is a deficient number, since it is larger than the sum of its proper divisors (68425404307).

136849239122 is an frugal number, since it uses more digits than its factorization.

136849239122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523164 (or 261583 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

Multiplying 136849239122 by its sum of digits (50), we get a square (6842461956100 = 2615810²).

The spelling of 136849239122 in words is "one hundred thirty-six billion, eight hundred forty-nine million, two hundred thirty-nine thousand, one hundred twenty-two".