149947975 has 6 divisors (see below), whose sum is σ = 185935520. Its totient is φ = 119958360.

The previous prime is 149947957. The next prime is 149947979. The reversal of 149947975 is 579749941.

It is not a de Polignac number, because 149947975 - 2¹¹ = 149945927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149947979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2998935 + ... + 2998984.

Almost surely, 2^149947975 is an apocalyptic number.

149947975 is a deficient number, since it is larger than the sum of its proper divisors (35987545).

149947975 is an equidigital number, since it uses as much as digits as its factorization.

149947975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997929 (or 5997924 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The square root of 149947975 is about 12245.3246179920. The cubic root of 149947975 is about 531.2678499193.

The spelling of 149947975 in words is "one hundred forty-nine million, nine hundred forty-seven thousand, nine hundred seventy-five".