149642250 has 32 divisors (see below), whose sum is σ = 373508928. Its totient is φ = 39904400.

The previous prime is 149642237. The next prime is 149642261. The reversal of 149642250 is 52246941.

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 15 ways as a sum of consecutive naturals, for example, 99012 + ... + 100511.

It is an arithmetic number, because the mean of its divisors is an integer number (11672154).

Almost surely, 2^149642250 is an apocalyptic number.

149642250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149642250 is an abundant number, since it is smaller than the sum of its proper divisors (223866678).

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

149642250 is a wasteful number, since it uses less digits than its factorization.

149642250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199543 (or 199533 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 149642250 is about 12232.8349126439. The cubic root of 149642250 is about 530.9065415510.

The spelling of 149642250 in words is "one hundred forty-nine million, six hundred forty-two thousand, two hundred fifty".