149999633 has 12 divisors (see below), whose sum is σ = 175377600. Its totient is φ = 127916712.

The previous prime is 149999627. The next prime is 149999639. The reversal of 149999633 is 336999941.

It is an interprime number because it is at equal distance from previous prime (149999627) and next prime (149999639).

It is not a de Polignac number, because 149999633 - 2⁶ = 149999569 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149999639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2060 + ... + 17442.

It is an arithmetic number, because the mean of its divisors is an integer number (14614800).

Almost surely, 2^149999633 is an apocalyptic number.

It is an amenable number.

149999633 is a deficient number, since it is larger than the sum of its proper divisors (25377967).

149999633 is a wasteful number, since it uses less digits than its factorization.

149999633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15596 (or 15589 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 53.

The square root of 149999633 is about 12247.4337311945. The cubic root of 149999633 is about 531.3288512624.

The spelling of 149999633 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, six hundred thirty-three".