149977434 has 32 divisors (see below), whose sum is σ = 331413120. Its totient is φ = 45005312.

The previous prime is 149977427. The next prime is 149977447. The reversal of 149977434 is 434779941.

149977434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29619 + ... + 34310.

It is an arithmetic number, because the mean of its divisors is an integer number (10356660).

Almost surely, 2^149977434 is an apocalyptic number.

149977434 is an abundant number, since it is smaller than the sum of its proper divisors (181435686).

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

149977434 is a wasteful number, since it uses less digits than its factorization.

149977434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63974.

The product of its digits is 762048, while the sum is 48.

The square root of 149977434 is about 12246.5274261727. The cubic root of 149977434 is about 531.3026388625.

The spelling of 149977434 in words is "one hundred forty-nine million, nine hundred seventy-seven thousand, four hundred thirty-four".