149971448 has 32 divisors (see below), whose sum is σ = 307532160. Its totient is φ = 67997280.

The previous prime is 149971447. The next prime is 149971457. The reversal of 149971448 is 844179941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149971447) by changing a digit.

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, 37061 + ... + 40907.

It is an arithmetic number, because the mean of its divisors is an integer number (9610380).

Almost surely, 2^149971448 is an apocalyptic number.

It is an amenable number.

149971448 is an abundant number, since it is smaller than the sum of its proper divisors (157560712).

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

149971448 is a wasteful number, since it uses less digits than its factorization.

149971448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307 (or 4303 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 149971448 is about 12246.2830279232. The cubic root of 149971448 is about 531.2955701993.

The spelling of 149971448 in words is "one hundred forty-nine million, nine hundred seventy-one thousand, four hundred forty-eight".