149464972449 has 81 divisors (see below), whose sum is σ = 244953090291. Its totient is φ = 87775253280.

The previous prime is 149464972441. The next prime is 149464972463. The reversal of 149464972449 is 944279464941.

The square root of 149464972449 is 386607.

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

149464972449 is a `hidden beast` number, since 1 + 49 + 4 + 64 + 97 + 2 + 449 = 666.

149464972449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22110203025 + 127354769424 = 148695^2 + 356868^2 .

It is not a de Polignac number, because 149464972449 - 2³ = 149464972441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149464972441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 346786264 + ... + 346786694.

Almost surely, 2^149464972449 is an apocalyptic number.

149464972449 is the 386607-th square number.

149464972449 is the 193304-th centered octagonal number.

It is an amenable number.

149464972449 is a deficient number, since it is larger than the sum of its proper divisors (95488117842).

149464972449 is an equidigital number, since it uses as much as digits as its factorization.

149464972449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 470 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 149464972449 in words is "one hundred forty-nine billion, four hundred sixty-four million, nine hundred seventy-two thousand, four hundred forty-nine".