251300122151 has 4 divisors (see below), whose sum is σ = 270630900792. Its totient is φ = 231969343512.

The previous prime is 251300122103. The next prime is 251300122189. The reversal of 251300122151 is 151221003152.

251300122151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 251300122151 - 2³⁴ = 234120252967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251300122651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9665389301 + ... + 9665389326.

It is an arithmetic number, because the mean of its divisors is an integer number (67657725198).

Almost surely, 2^251300122151 is an apocalyptic number.

251300122151 is a deficient number, since it is larger than the sum of its proper divisors (19330778641).

251300122151 is a wasteful number, since it uses less digits than its factorization.

251300122151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19330778640.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 251300122151 in words is "two hundred fifty-one billion, three hundred million, one hundred twenty-two thousand, one hundred fifty-one".