1251540453112 has 16 divisors (see below), whose sum is σ = 2347796070360. Its totient is φ = 625461501024.

The previous prime is 1251540453091. The next prime is 1251540453133. The reversal of 1251540453112 is 2113540451521.

It is an interprime number because it is at equal distance from previous prime (1251540453091) and next prime (1251540453133).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38573463 + ... + 38605894.

Almost surely, 2^{1251540453112} is an apocalyptic number.

It is an amenable number.

1251540453112 is a deficient number, since it is larger than the sum of its proper divisors (1096255617248).

1251540453112 is a wasteful number, since it uses less digits than its factorization.

1251540453112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77181390 (or 77181386 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1251540453112 in words is "one trillion, two hundred fifty-one billion, five hundred forty million, four hundred fifty-three thousand, one hundred twelve".