1249970956441 has 3 divisors (see below), whose sum is σ = 1249972074463. Its totient is φ = 1249969838420.

The previous prime is 1249970956433. The next prime is 1249970956453. The reversal of 1249970956441 is 1446590799421.

The square root of 1249970956441 is 1118021.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1007572280841 + 242398675600 = 1003779^2 + 492340^2 .

It is not a de Polignac number, because 1249970956441 - 2³ = 1249970956433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1249970956441.

It is not an unprimeable number, because it can be changed into a prime (1249970950441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 559011 + ... + 1677031.

Almost surely, 2^{1249970956441} is an apocalyptic number.

1249970956441 is the 1118021-st square number.

1249970956441 is the 559011-st centered octagonal number.

It is an amenable number.

1249970956441 is a deficient number, since it is larger than the sum of its proper divisors (1118022).

1249970956441 is an frugal number, since it uses more digits than its factorization.

1249970956441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236042 (or 1118021 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 1249970956441 in words is "one trillion, two hundred forty-nine billion, nine hundred seventy million, nine hundred fifty-six thousand, four hundred forty-one".