150664399 has 4 divisors (see below), whose sum is σ = 150752680. Its totient is φ = 150576120.

The previous prime is 150664379. The next prime is 150664403. The reversal of 150664399 is 993466051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150664399 - 2²⁷ = 16446671 is a prime.

It is a super-2 number, since 2×150664399² = 45399522252062402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150664379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41529 + ... + 45010.

It is an arithmetic number, because the mean of its divisors is an integer number (37688170).

Almost surely, 2^150664399 is an apocalyptic number.

150664399 is a deficient number, since it is larger than the sum of its proper divisors (88281).

150664399 is an equidigital number, since it uses as much as digits as its factorization.

150664399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88280.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 150664399 is about 12274.5427206067. The cubic root of 150664399 is about 532.1126061878.

The spelling of 150664399 in words is "one hundred fifty million, six hundred sixty-four thousand, three hundred ninety-nine".