149915770 has 16 divisors (see below), whose sum is σ = 270387720. Its totient is φ = 59846464.

The previous prime is 149915767. The next prime is 149915807. The reversal of 149915770 is 77519941.

It can be written as a sum of positive squares in 4 ways, for example, as 136585969 + 13329801 = 11687^2 + 3651^2 .

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, 9637 + ... + 19816.

Almost surely, 2^149915770 is an apocalyptic number.

149915770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149915770 is a deficient number, since it is larger than the sum of its proper divisors (120471950).

149915770 is a wasteful number, since it uses less digits than its factorization.

149915770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29969.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 149915770 is about 12244.0095556970. The cubic root of 149915770 is about 531.2298129353.

The spelling of 149915770 in words is "one hundred forty-nine million, nine hundred fifteen thousand, seven hundred seventy".