149717760 has 144 divisors (see below), whose sum is σ = 483495936. Its totient is φ = 39481344.

The previous prime is 149717753. The next prime is 149717791. The reversal of 149717760 is 67717941.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487527 + ... + 487833.

Almost surely, 2^149717760 is an apocalyptic number.

149717760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149717760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241747968).

149717760 is an abundant number, since it is smaller than the sum of its proper divisors (333778176).

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

149717760 is a wasteful number, since it uses less digits than its factorization.

149717760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 149717760 is about 12235.9208889237. The cubic root of 149717760 is about 530.9958256310.

The spelling of 149717760 in words is "one hundred forty-nine million, seven hundred seventeen thousand, seven hundred sixty".