1250745653 has 2 divisors, whose sum is σ = 1250745654. Its totient is φ = 1250745652.

The previous prime is 1250745637. The next prime is 1250745667. The reversal of 1250745653 is 3565470521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 910047889 + 340697764 = 30167^2 + 18458^2 .

It is an emirp because it is prime and its reverse (3565470521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1250745653 - 2⁴ = 1250745637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250745253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625372826 + 625372827.

It is an arithmetic number, because the mean of its divisors is an integer number (625372827).

Almost surely, 2^1250745653 is an apocalyptic number.

It is an amenable number.

1250745653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250745653 is an equidigital number, since it uses as much as digits as its factorization.

1250745653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 1250745653 is about 35365.8826130495. The cubic root of 1250745653 is about 1077.4314971981.

The spelling of 1250745653 in words is "one billion, two hundred fifty million, seven hundred forty-five thousand, six hundred fifty-three".