149537718 has 64 divisors (see below), whose sum is σ = 368547840. Its totient is φ = 44560800.

The previous prime is 149537699. The next prime is 149537723. The reversal of 149537718 is 817735941.

149537718 is a `hidden beast` number, since 1 + 49 + 537 + 71 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34171 + ... + 38297.

It is an arithmetic number, because the mean of its divisors is an integer number (5758560).

Almost surely, 2^149537718 is an apocalyptic number.

149537718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149537718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184273920).

149537718 is an abundant number, since it is smaller than the sum of its proper divisors (219010122).

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

149537718 is a wasteful number, since it uses less digits than its factorization.

149537718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210 (or 4204 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 149537718 is about 12228.5615670855. The cubic root of 149537718 is about 530.7828918688.

The spelling of 149537718 in words is "one hundred forty-nine million, five hundred thirty-seven thousand, seven hundred eighteen".