149663975 has 6 divisors (see below), whose sum is σ = 185583360. Its totient is φ = 119731160.

The previous prime is 149663959. The next prime is 149663993. The reversal of 149663975 is 579366941.

It is not a de Polignac number, because 149663975 - 2⁴ = 149663959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2993255 + ... + 2993304.

It is an arithmetic number, because the mean of its divisors is an integer number (30930560).

Almost surely, 2^149663975 is an apocalyptic number.

149663975 is a deficient number, since it is larger than the sum of its proper divisors (35919385).

149663975 is an equidigital number, since it uses as much as digits as its factorization.

149663975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986569 (or 5986564 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 50.

The square root of 149663975 is about 12233.7228593752. The cubic root of 149663975 is about 530.9322325719.

The spelling of 149663975 in words is "one hundred forty-nine million, six hundred sixty-three thousand, nine hundred seventy-five".