149152644 has 24 divisors (see below), whose sum is σ = 386692320. Its totient is φ = 49717512.

The previous prime is 149152639. The next prime is 149152673. The reversal of 149152644 is 446251941.

149152644 is a `hidden beast` number, since 1 + 4 + 9 + 1 + 5 + 2 + 644 = 666.

149152644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149152644² = 44493022424381472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149152599 and 149152608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690414 + ... + 690629.

It is an arithmetic number, because the mean of its divisors is an integer number (16112180).

Almost surely, 2^149152644 is an apocalyptic number.

It is an amenable number.

149152644 is an abundant number, since it is smaller than the sum of its proper divisors (237539676).

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

149152644 is a wasteful number, since it uses less digits than its factorization.

149152644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381056 (or 1381048 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 149152644 is about 12212.8065570531. The cubic root of 149152644 is about 530.3268945741.

The spelling of 149152644 in words is "one hundred forty-nine million, one hundred fifty-two thousand, six hundred forty-four".