149618390 has 16 divisors (see below), whose sum is σ = 275044032. Its totient is φ = 58573824.

The previous prime is 149618383. The next prime is 149618449. The reversal of 149618390 is 93816941.

It is a congruent number.

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, 158699 + ... + 159638.

It is an arithmetic number, because the mean of its divisors is an integer number (17190252).

Almost surely, 2^149618390 is an apocalyptic number.

149618390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149618390 is a deficient number, since it is larger than the sum of its proper divisors (125425642).

149618390 is a wasteful number, since it uses less digits than its factorization.

149618390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318391.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 149618390 is about 12231.8596296720. The cubic root of 149618390 is about 530.8783229086.

The spelling of 149618390 in words is "one hundred forty-nine million, six hundred eighteen thousand, three hundred ninety".