251233130135150 has 48 divisors (see below), whose sum is σ = 467393034181248. Its totient is φ = 100471875660000.

The previous prime is 251233130135077. The next prime is 251233130135161. The reversal of 251233130135150 is 51531031332152.

It is a self number, because there is not a number n which added to its sum of digits gives 251233130135150.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6162034265 + ... + 6162075035.

It is an arithmetic number, because the mean of its divisors is an integer number (9737354878776).

Almost surely, 2^{251233130135150} is an apocalyptic number.

251233130135150 is a deficient number, since it is larger than the sum of its proper divisors (216159904046098).

251233130135150 is a wasteful number, since it uses less digits than its factorization.

251233130135150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63977 (or 63972 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 251233130135150 in words is "two hundred fifty-one trillion, two hundred thirty-three billion, one hundred thirty million, one hundred thirty-five thousand, one hundred fifty".