149205249508 has 18 divisors (see below), whose sum is σ = 303739258326. Its totient is φ = 63945106848.

The previous prime is 149205249491. The next prime is 149205249521. The reversal of 149205249508 is 805942502941.

It can be written as a sum of positive squares in only one way, i.e., 93172678564 + 56032570944 = 305242^2 + 236712^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380625441 + ... + 380625832.

Almost surely, 2^149205249508 is an apocalyptic number.

It is an amenable number.

149205249508 is an abundant number, since it is smaller than the sum of its proper divisors (154534008818).

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

149205249508 is a wasteful number, since it uses less digits than its factorization.

149205249508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761251291 (or 761251282 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 149205249508 in words is "one hundred forty-nine billion, two hundred five million, two hundred forty-nine thousand, five hundred eight".