1251414522155 has 16 divisors (see below), whose sum is σ = 1716244879104. Its totient is φ = 858103190880.

The previous prime is 1251414522143. The next prime is 1251414522191. The reversal of 1251414522155 is 5512254141521.

It is not a de Polignac number, because 1251414522155 - 2⁸ = 1251414521899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4549784 + ... + 4816986.

It is an arithmetic number, because the mean of its divisors is an integer number (107265304944).

Almost surely, 2^{1251414522155} is an apocalyptic number.

1251414522155 is a deficient number, since it is larger than the sum of its proper divisors (464830356949).

1251414522155 is a wasteful number, since it uses less digits than its factorization.

1251414522155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401026.

The product of its digits is 80000, while the sum is 38.

Adding to 1251414522155 its reverse (5512254141521), we get a palindrome (6763668663676).

The spelling of 1251414522155 in words is "one trillion, two hundred fifty-one billion, four hundred fourteen million, five hundred twenty-two thousand, one hundred fifty-five".