150664997 has 4 divisors (see below), whose sum is σ = 172188576. Its totient is φ = 129141420.

The previous prime is 150664981. The next prime is 150665029. The reversal of 150664997 is 799466051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799466051 = 11821 ⋅67631.

It is a cyclic number.

It is not a de Polignac number, because 150664997 - 2⁴ = 150664981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150664957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10761779 + ... + 10761792.

It is an arithmetic number, because the mean of its divisors is an integer number (43047144).

Almost surely, 2^150664997 is an apocalyptic number.

It is an amenable number.

150664997 is a deficient number, since it is larger than the sum of its proper divisors (21523579).

150664997 is an equidigital number, since it uses as much as digits as its factorization.

150664997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21523578.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 150664997 is about 12274.5670799422. The cubic root of 150664997 is about 532.1133101871.

The spelling of 150664997 in words is "one hundred fifty million, six hundred sixty-four thousand, nine hundred ninety-seven".