149630173 has 18 divisors (see below), whose sum is σ = 191329278. Its totient is φ = 116590320.

The previous prime is 149630161. The next prime is 149630177. The reversal of 149630173 is 371036941.

It can be written as a sum of positive squares in only one way, i.e., 140612164 + 9018009 = 11858^2 + 3003^2 .

It is not a de Polignac number, because 149630173 - 2¹⁷ = 149499101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149630177) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6690 + ... + 18547.

Almost surely, 2^149630173 is an apocalyptic number.

It is an amenable number.

149630173 is a deficient number, since it is larger than the sum of its proper divisors (41699105).

149630173 is a wasteful number, since it uses less digits than its factorization.

149630173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25273 (or 25255 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 149630173 is about 12232.3412722177. The cubic root of 149630173 is about 530.8922587514.

The spelling of 149630173 in words is "one hundred forty-nine million, six hundred thirty thousand, one hundred seventy-three".