149931850 has 24 divisors (see below), whose sum is σ = 293552640. Its totient is φ = 56815920.

The previous prime is 149931811. The next prime is 149931889. The reversal of 149931850 is 58139941.

It is an interprime number because it is at equal distance from previous prime (149931811) and next prime (149931889).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77962 + ... + 79861.

It is an arithmetic number, because the mean of its divisors is an integer number (12231360).

Almost surely, 2^149931850 is an apocalyptic number.

149931850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149931850 is a deficient number, since it is larger than the sum of its proper divisors (143620790).

149931850 is a wasteful number, since it uses less digits than its factorization.

149931850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157854 (or 157849 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 149931850 is about 12244.6661857316. Note that the first 3 decimals coincide. The cubic root of 149931850 is about 531.2488055336.

The spelling of 149931850 in words is "one hundred forty-nine million, nine hundred thirty-one thousand, eight hundred fifty".