1251412400245 has 16 divisors (see below), whose sum is σ = 1717170473088. Its totient is φ = 857637483840.

The previous prime is 1251412400221. The next prime is 1251412400291. The reversal of 1251412400245 is 5420042141521.

It is not a de Polignac number, because 1251412400245 - 2¹⁵ = 1251412367477 is a prime.

It is a congruent number.

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, 9808134 + ... + 9934903.

It is an arithmetic number, because the mean of its divisors is an integer number (107323154568).

Almost surely, 2^{1251412400245} is an apocalyptic number.

It is an amenable number.

1251412400245 is a deficient number, since it is larger than the sum of its proper divisors (465758072843).

1251412400245 is a wasteful number, since it uses less digits than its factorization.

1251412400245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744860.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 1251412400245 its reverse (5420042141521), we get a palindrome (6671454541766).

The spelling of 1251412400245 in words is "one trillion, two hundred fifty-one billion, four hundred twelve million, four hundred thousand, two hundred forty-five".