149171930 has 8 divisors (see below), whose sum is σ = 268509492. Its totient is φ = 59668768.

The previous prime is 149171929. The next prime is 149171947. The reversal of 149171930 is 39171941.

It is a happy number.

149171930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148669249 + 502681 = 12193^2 + 709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7458587 + ... + 7458606.

Almost surely, 2^149171930 is an apocalyptic number.

149171930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149171930 is a deficient number, since it is larger than the sum of its proper divisors (119337562).

149171930 is a wasteful number, since it uses less digits than its factorization.

149171930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14917200.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 149171930 is about 12213.5961125297. The cubic root of 149171930 is about 530.3497513455.

The spelling of 149171930 in words is "one hundred forty-nine million, one hundred seventy-one thousand, nine hundred thirty".