149757571730 has 16 divisors (see below), whose sum is σ = 290299293144. Its totient is φ = 55295103360.

The previous prime is 149757571661. The next prime is 149757571781. The reversal of 149757571730 is 37175757941.

It can be written as a sum of positive squares in 4 ways, for example, as 50695674649 + 99061897081 = 225157^2 + 314741^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575990531 + ... + 575990790.

Almost surely, 2^149757571730 is an apocalyptic number.

149757571730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149757571730 is a deficient number, since it is larger than the sum of its proper divisors (140541721414).

149757571730 is a wasteful number, since it uses less digits than its factorization.

149757571730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151981341.

The product of its (nonzero) digits is 6482700, while the sum is 56.

The spelling of 149757571730 in words is "one hundred forty-nine billion, seven hundred fifty-seven million, five hundred seventy-one thousand, seven hundred thirty".