151664631 has 8 divisors (see below), whose sum is σ = 212862720. Its totient is φ = 95788152.

The previous prime is 151664609. The next prime is 151664651. The reversal of 151664631 is 136466151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 151664631 - 2⁷ = 151664503 is a prime.

It is a super-2 number, since 2×151664631² = 46004320592732322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151664592 and 151664601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151664651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330335 + ... + 1330448.

It is an arithmetic number, because the mean of its divisors is an integer number (26607840).

Almost surely, 2^151664631 is an apocalyptic number.

151664631 is a deficient number, since it is larger than the sum of its proper divisors (61198089).

151664631 is a wasteful number, since it uses less digits than its factorization.

151664631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660805.

The product of its digits is 12960, while the sum is 33.

The square root of 151664631 is about 12315.2194864728. The cubic root of 151664631 is about 533.2875410770.

The spelling of 151664631 in words is "one hundred fifty-one million, six hundred sixty-four thousand, six hundred thirty-one".