1252274564143 has 4 divisors (see below), whose sum is σ = 1252299250048. Its totient is φ = 1252249878240.

The previous prime is 1252274564137. The next prime is 1252274564171. The reversal of 1252274564143 is 3414654722521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252274564143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252274564093 and 1252274564102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252274564243) 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, 12266703 + ... + 12368368.

It is an arithmetic number, because the mean of its divisors is an integer number (313074812512).

Almost surely, 2^{1252274564143} is an apocalyptic number.

1252274564143 is a deficient number, since it is larger than the sum of its proper divisors (24685905).

1252274564143 is an equidigital number, since it uses as much as digits as its factorization.

1252274564143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24685904.

The product of its digits is 1612800, while the sum is 46.

The spelling of 1252274564143 in words is "one trillion, two hundred fifty-two billion, two hundred seventy-four million, five hundred sixty-four thousand, one hundred forty-three".