1252044641 has 2 divisors, whose sum is σ = 1252044642. Its totient is φ = 1252044640.

The previous prime is 1252044623. The next prime is 1252044659. The reversal of 1252044641 is 1464402521.

It is a balanced prime because it is at equal distance from previous prime (1252044623) and next prime (1252044659).

It can be written as a sum of positive squares in only one way, i.e., 993510400 + 258534241 = 31520^2 + 16079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252044641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252044041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626022320 + 626022321.

It is an arithmetic number, because the mean of its divisors is an integer number (626022321).

Almost surely, 2^1252044641 is an apocalyptic number.

It is an amenable number.

1252044641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252044641 is an equidigital number, since it uses as much as digits as its factorization.

1252044641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1252044641 is about 35384.2428349117. The cubic root of 1252044641 is about 1077.8043644670.

The spelling of 1252044641 in words is "one billion, two hundred fifty-two million, forty-four thousand, six hundred forty-one".