1250982197 has 2 divisors, whose sum is σ = 1250982198. Its totient is φ = 1250982196.

The previous prime is 1250982181. The next prime is 1250982199. The reversal of 1250982197 is 7912890521.

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., 645871396 + 605110801 = 25414^2 + 24599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250982197 - 2⁴ = 1250982181 is a prime.

Together with 1250982199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250982199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625491098 + 625491099.

It is an arithmetic number, because the mean of its divisors is an integer number (625491099).

Almost surely, 2^1250982197 is an apocalyptic number.

It is an amenable number.

1250982197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250982197 is an equidigital number, since it uses as much as digits as its factorization.

1250982197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 1250982197 is about 35369.2266949675. The cubic root of 1250982197 is about 1077.4994150545.

The spelling of 1250982197 in words is "one billion, two hundred fifty million, nine hundred eighty-two thousand, one hundred ninety-seven".