151638806 has 16 divisors (see below), whose sum is σ = 248546448. Its totient is φ = 68812800.

The previous prime is 151638803. The next prime is 151638811. The reversal of 151638806 is 608836151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 151638806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151638803) 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, 8726 + ... + 19478.

It is an arithmetic number, because the mean of its divisors is an integer number (15534153).

Almost surely, 2^151638806 is an apocalyptic number.

151638806 is a deficient number, since it is larger than the sum of its proper divisors (96907642).

151638806 is a wasteful number, since it uses less digits than its factorization.

151638806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11407.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 151638806 is about 12314.1709424549. The cubic root of 151638806 is about 533.2572704894.

The spelling of 151638806 in words is "one hundred fifty-one million, six hundred thirty-eight thousand, eight hundred six".