149358287961 has 45 divisors (see below), whose sum is σ = 233362901541. Its totient is φ = 95191952328.

The previous prime is 149358287921. The next prime is 149358287983. The reversal of 149358287961 is 169782853941.

The square root of 149358287961 is 386469.

It is a perfect power (a square), and thus also a powerful number.

149358287961 is a `hidden beast` number, since 1 + 49 + 3 + 582 + 8 + 7 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 149358287961 - 2⁷ = 149358287833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149358287921) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 79998150 + ... + 80000016.

Almost surely, 2^149358287961 is an apocalyptic number.

149358287961 is the 386469-th square number.

149358287961 is the 193235-th centered octagonal number.

It is an amenable number.

149358287961 is a deficient number, since it is larger than the sum of its proper divisors (84004613580).

149358287961 is an frugal number, since it uses more digits than its factorization.

149358287961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 1893 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 149358287961 in words is "one hundred forty-nine billion, three hundred fifty-eight million, two hundred eighty-seven thousand, nine hundred sixty-one".