149971230428 has 24 divisors (see below), whose sum is σ = 278018539344. Its totient is φ = 70541510400.

The previous prime is 149971230403. The next prime is 149971230439. The reversal of 149971230428 is 824032179941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372563 + ... + 662378.

It is an arithmetic number, because the mean of its divisors is an integer number (11584105806).

Almost surely, 2^149971230428 is an apocalyptic number.

It is an amenable number.

149971230428 is a deficient number, since it is larger than the sum of its proper divisors (128047308916).

149971230428 is a wasteful number, since it uses less digits than its factorization.

149971230428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037093 (or 1037091 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 149971230428 in words is "one hundred forty-nine billion, nine hundred seventy-one million, two hundred thirty thousand, four hundred twenty-eight".