149244864 has 28 divisors (see below), whose sum is σ = 394877544. Its totient is φ = 49748224.

The previous prime is 149244847. The next prime is 149244869. The reversal of 149244864 is 468442941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149244869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388467 + ... + 388850.

Almost surely, 2^149244864 is an apocalyptic number.

It is an amenable number.

149244864 is an abundant number, since it is smaller than the sum of its proper divisors (245632680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149244864 is an equidigital number, since it uses as much as digits as its factorization.

149244864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777332 (or 777322 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 149244864 is about 12216.5815185755. The cubic root of 149244864 is about 530.4361711487.

The spelling of 149244864 in words is "one hundred forty-nine million, two hundred forty-four thousand, eight hundred sixty-four".