149947872 has 48 divisors (see below), whose sum is σ = 395176320. Its totient is φ = 49784192.

The previous prime is 149947859. The next prime is 149947873. The reversal of 149947872 is 278749941.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149947873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22279 + ... + 28217.

It is an arithmetic number, because the mean of its divisors is an integer number (8232840).

Almost surely, 2^149947872 is an apocalyptic number.

149947872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149947872 is an abundant number, since it is smaller than the sum of its proper divisors (245228448).

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

149947872 is a wasteful number, since it uses less digits than its factorization.

149947872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215 (or 6207 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 149947872 is about 12245.3204123044. The cubic root of 149947872 is about 531.2677282757.

The spelling of 149947872 in words is "one hundred forty-nine million, nine hundred forty-seven thousand, eight hundred seventy-two".