1253971417 has 2 divisors, whose sum is σ = 1253971418. Its totient is φ = 1253971416.

The previous prime is 1253971363. The next prime is 1253971447. The reversal of 1253971417 is 7141793521.

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., 1025024256 + 228947161 = 32016^2 + 15131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253971417 - 2¹¹ = 1253969369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1253971417.

It is not a weakly prime, because it can be changed into another prime (1253971447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626985708 + 626985709.

It is an arithmetic number, because the mean of its divisors is an integer number (626985709).

Almost surely, 2^1253971417 is an apocalyptic number.

It is an amenable number.

1253971417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253971417 is an equidigital number, since it uses as much as digits as its factorization.

1253971417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 40.

The square root of 1253971417 is about 35411.4588375006. The cubic root of 1253971417 is about 1078.3569601040.

The spelling of 1253971417 in words is "one billion, two hundred fifty-three million, nine hundred seventy-one thousand, four hundred seventeen".