149738477317 has 72 divisors (see below), whose sum is σ = 189512410752. Its totient is φ = 117904026240.

The previous prime is 149738477311. The next prime is 149738477333. The reversal of 149738477317 is 713774837941.

It is not a de Polignac number, because 149738477317 - 2¹¹ = 149738475269 is a prime.

It is a super-2 number, since 2×149738477317² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149738477311) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24924328 + ... + 24930334.

It is an arithmetic number, because the mean of its divisors is an integer number (2632116816).

Almost surely, 2^149738477317 is an apocalyptic number.

It is an amenable number.

149738477317 is a deficient number, since it is larger than the sum of its proper divisors (39773933435).

149738477317 is a wasteful number, since it uses less digits than its factorization.

149738477317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131 (or 6107 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 61.

The spelling of 149738477317 in words is "one hundred forty-nine billion, seven hundred thirty-eight million, four hundred seventy-seven thousand, three hundred seventeen".