149972750 has 16 divisors (see below), whose sum is σ = 280749456. Its totient is φ = 59989000.

The previous prime is 149972707. The next prime is 149972789. The reversal of 149972750 is 57279941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299696 + ... + 300195.

It is an arithmetic number, because the mean of its divisors is an integer number (17546841).

Almost surely, 2^149972750 is an apocalyptic number.

149972750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149972750 is a deficient number, since it is larger than the sum of its proper divisors (130776706).

149972750 is an equidigital number, since it uses as much as digits as its factorization.

149972750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599908 (or 599898 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 149972750 is about 12246.3361867948. The cubic root of 149972750 is about 531.2971077027.

The spelling of 149972750 in words is "one hundred forty-nine million, nine hundred seventy-two thousand, seven hundred fifty".