151811630 has 32 divisors (see below), whose sum is σ = 277452000. Its totient is φ = 59801472.

The previous prime is 151811593. The next prime is 151811641. The reversal of 151811630 is 36118151.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 151811630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206744 + ... + 207476.

It is an arithmetic number, because the mean of its divisors is an integer number (8670375).

Almost surely, 2^151811630 is an apocalyptic number.

151811630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151811630 is a deficient number, since it is larger than the sum of its proper divisors (125640370).

151811630 is a wasteful number, since it uses less digits than its factorization.

151811630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 151811630 is about 12321.1862253600. The cubic root of 151811630 is about 533.4597794808.

Adding to 151811630 its reverse (36118151), we get a palindrome (187929781).

The spelling of 151811630 in words is "one hundred fifty-one million, eight hundred eleven thousand, six hundred thirty".