149898930722 has 18 divisors (see below), whose sum is σ = 235069206267. Its totient is φ = 71684770036.

The previous prime is 149898930637. The next prime is 149898930739. The reversal of 149898930722 is 227039898941.

It can be written as a sum of positive squares in only one way, i.e., 74949465361 + 74949465361 = 273769^2 + 273769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=273769.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12587423 + ... + 12599325.

Almost surely, 2^149898930722 is an apocalyptic number.

149898930722 is a deficient number, since it is larger than the sum of its proper divisors (85170275545).

149898930722 is an frugal number, since it uses more digits than its factorization.

149898930722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23854 (or 11928 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 149898930722 in words is "one hundred forty-nine billion, eight hundred ninety-eight million, nine hundred thirty thousand, seven hundred twenty-two".