2151304155 has 192 divisors, whose sum is σ = 5054579712. Its totient is φ = 817413120.

The previous prime is 2151304109. The next prime is 2151304223. The reversal of 2151304155 is 5514031512.

2151304155 is a `hidden beast` number, since 215 + 1 + 30 + 415 + 5 = 666.

It is not a de Polignac number, because 2151304155 - 2⁶ = 2151304091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7342189 + ... + 7342481.

It is an arithmetic number, because the mean of its divisors is an integer number (26325936).

Almost surely, 2^2151304155 is an apocalyptic number.

2151304155 is an abundant number, since it is smaller than the sum of its proper divisors (2903275557).

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

2151304155 is a wasteful number, since it uses less digits than its factorization.

2151304155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 2151304155 is about 46382.1534105522. The cubic root of 2151304155 is about 1290.9237929570.

Adding to 2151304155 its reverse (5514031512), we get a palindrome (7665335667).

The spelling of 2151304155 in words is "two billion, one hundred fifty-one million, three hundred four thousand, one hundred fifty-five".