1250164049 has 2 divisors, whose sum is σ = 1250164050. Its totient is φ = 1250164048.

The previous prime is 1250164031. The next prime is 1250164051. The reversal of 1250164049 is 9404610521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891440449 + 358723600 = 29857^2 + 18940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1250164049 is a prime.

Together with 1250164051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1250164079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625082024 + 625082025.

It is an arithmetic number, because the mean of its divisors is an integer number (625082025).

Almost surely, 2^1250164049 is an apocalyptic number.

It is an amenable number.

1250164049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250164049 is an equidigital number, since it uses as much as digits as its factorization.

1250164049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1250164049 is about 35357.6589864205. The cubic root of 1250164049 is about 1077.2644673354.

The spelling of 1250164049 in words is "one billion, two hundred fifty million, one hundred sixty-four thousand, forty-nine".