150665631 has 4 divisors (see below), whose sum is σ = 200887512. Its totient is φ = 100443752.

The previous prime is 150665609. The next prime is 150665633. The reversal of 150665631 is 136566051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136566051 = 3 ⋅45522017.

It is a cyclic number.

It is not a de Polignac number, because 150665631 - 2¹³ = 150657439 is a prime.

It is a super-2 number, since 2×150665631² = 45400264729256322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 150665592 and 150665601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150665633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25110936 + ... + 25110941.

It is an arithmetic number, because the mean of its divisors is an integer number (50221878).

Almost surely, 2^150665631 is an apocalyptic number.

150665631 is a deficient number, since it is larger than the sum of its proper divisors (50221881).

150665631 is an equidigital number, since it uses as much as digits as its factorization.

150665631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50221880.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 150665631 is about 12274.5929056731. The cubic root of 150665631 is about 532.1140565657.

The spelling of 150665631 in words is "one hundred fifty million, six hundred sixty-five thousand, six hundred thirty-one".