1251421014115 has 8 divisors (see below), whose sum is σ = 1515482329680. Its totient is φ = 991952069472.

The previous prime is 1251421014089. The next prime is 1251421014133. The reversal of 1251421014115 is 5114101241521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1251421014115 - 2¹⁷ = 1251420883043 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148092129 + ... + 1148093218.

It is an arithmetic number, because the mean of its divisors is an integer number (189435291210).

Almost surely, 2^{1251421014115} is an apocalyptic number.

1251421014115 is a deficient number, since it is larger than the sum of its proper divisors (264061315565).

1251421014115 is a wasteful number, since it uses less digits than its factorization.

1251421014115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296185461.

The product of its (nonzero) digits is 1600, while the sum is 28.

Adding to 1251421014115 its reverse (5114101241521), we get a palindrome (6365522255636).

The spelling of 1251421014115 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-one million, fourteen thousand, one hundred fifteen".