149644305 has 12 divisors (see below), whose sum is σ = 259383540. Its totient is φ = 79810272.

The previous prime is 149644291. The next prime is 149644309. The reversal of 149644305 is 503446941.

149644305 is a `hidden beast` number, since 1 + 4 + 9 + 644 + 3 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67125249 + 82519056 = 8193^2 + 9084^2 .

It is not a de Polignac number, because 149644305 - 2⁶ = 149644241 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 149644305.

It is not an unprimeable number, because it can be changed into a prime (149644309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1662670 + ... + 1662759.

It is an arithmetic number, because the mean of its divisors is an integer number (21615295).

Almost surely, 2^149644305 is an apocalyptic number.

149644305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149644305 is a deficient number, since it is larger than the sum of its proper divisors (109739235).

149644305 is a wasteful number, since it uses less digits than its factorization.

149644305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325440 (or 3325437 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 149644305 is about 12232.9189076034. The cubic root of 149644305 is about 530.9089718093.

The spelling of 149644305 in words is "one hundred forty-nine million, six hundred forty-four thousand, three hundred five".