151639427 has 4 divisors (see below), whose sum is σ = 151741296. Its totient is φ = 151537560.

The previous prime is 151639403. The next prime is 151639441. The reversal of 151639427 is 724936151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724936151 = 17 ⋅42643303.

It is a cyclic number.

It is not a de Polignac number, because 151639427 - 2⁶ = 151639363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151632427) 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, 48668 + ... + 51689.

It is an arithmetic number, because the mean of its divisors is an integer number (37935324).

Almost surely, 2^151639427 is an apocalyptic number.

151639427 is a deficient number, since it is larger than the sum of its proper divisors (101869).

151639427 is a wasteful number, since it uses less digits than its factorization.

151639427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101868.

The product of its digits is 45360, while the sum is 38.

The square root of 151639427 is about 12314.1961572812. The cubic root of 151639427 is about 533.2579984304.

The spelling of 151639427 in words is "one hundred fifty-one million, six hundred thirty-nine thousand, four hundred twenty-seven".