149787297 has 24 divisors (see below), whose sum is σ = 237095040. Its totient is φ = 90370080.

The previous prime is 149787271. The next prime is 149787299. The reversal of 149787297 is 792787941.

It is not a de Polignac number, because 149787297 - 2¹⁵ = 149754529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149787299) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 19368 + ... + 25974.

It is an arithmetic number, because the mean of its divisors is an integer number (9878960).

Almost surely, 2^149787297 is an apocalyptic number.

It is an amenable number.

149787297 is a deficient number, since it is larger than the sum of its proper divisors (87307743).

149787297 is a wasteful number, since it uses less digits than its factorization.

149787297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853 (or 6850 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The square root of 149787297 is about 12238.7620697520. The cubic root of 149787297 is about 531.0780206040.

The spelling of 149787297 in words is "one hundred forty-nine million, seven hundred eighty-seven thousand, two hundred ninety-seven".