151116642 has 48 divisors (see below), whose sum is σ = 334796280. Its totient is φ = 49248000.

The previous prime is 151116631. The next prime is 151116649. The reversal of 151116642 is 246611151.

151116642 is a `hidden beast` number, since 1 + 5 + 1 + 1 + 16 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 142062561 + 9054081 = 11919^2 + 3009^2 .

It is not an unprimeable number, because it can be changed into a prime (151116649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251142 + ... + 251742.

Almost surely, 2^151116642 is an apocalyptic number.

151116642 is an abundant number, since it is smaller than the sum of its proper divisors (183679638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151116642 is a wasteful number, since it uses less digits than its factorization.

151116642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 896 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 151116642 is about 12292.9509069222. The cubic root of 151116642 is about 532.6444810621.

Adding to 151116642 its reverse (246611151), we get a palindrome (397727793).

The spelling of 151116642 in words is "one hundred fifty-one million, one hundred sixteen thousand, six hundred forty-two".