149931954 has 12 divisors (see below), whose sum is σ = 324852606. Its totient is φ = 49977312.

The previous prime is 149931953. The next prime is 149931979. The reversal of 149931954 is 459139941.

It can be written as a sum of positive squares in only one way, i.e., 143352729 + 6579225 = 11973^2 + 2565^2 .

It is not an unprimeable number, because it can be changed into a prime (149931953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4164759 + ... + 4164794.

Almost surely, 2^149931954 is an apocalyptic number.

149931954 is an abundant number, since it is smaller than the sum of its proper divisors (174920652).

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

149931954 is a wasteful number, since it uses less digits than its factorization.

149931954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329561 (or 8329558 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 149931954 is about 12244.6704324780. The cubic root of 149931954 is about 531.2489283669.

The spelling of 149931954 in words is "one hundred forty-nine million, nine hundred thirty-one thousand, nine hundred fifty-four".