149317722 has 16 divisors (see below), whose sum is σ = 331817280. Its totient is φ = 49772556.

The previous prime is 149317717. The next prime is 149317759. The reversal of 149317722 is 227713941.

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 7 ways as a sum of consecutive naturals, for example, 1382518 + ... + 1382625.

It is an arithmetic number, because the mean of its divisors is an integer number (20738580).

Almost surely, 2^149317722 is an apocalyptic number.

149317722 is an abundant number, since it is smaller than the sum of its proper divisors (182499558).

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

149317722 is a wasteful number, since it uses less digits than its factorization.

149317722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765154 (or 2765148 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 149317722 is about 12219.5630854790. The cubic root of 149317722 is about 530.5224727930.

The spelling of 149317722 in words is "one hundred forty-nine million, three hundred seventeen thousand, seven hundred twenty-two".