1275197057 has 2 divisors, whose sum is σ = 1275197058. Its totient is φ = 1275197056.

The previous prime is 1275197041. The next prime is 1275197083. The reversal of 1275197057 is 7507915721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929274256 + 345922801 = 30484^2 + 18599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275197057 - 2⁴ = 1275197041 is a prime.

It is a super-2 number, since 2×1275197057² = 3252255068362922498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1275196999 and 1275197017.

It is not a weakly prime, because it can be changed into another prime (1275197087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637598528 + 637598529.

It is an arithmetic number, because the mean of its divisors is an integer number (637598529).

Almost surely, 2^1275197057 is an apocalyptic number.

It is an amenable number.

1275197057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275197057 is an equidigital number, since it uses as much as digits as its factorization.

1275197057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154350, while the sum is 44.

The square root of 1275197057 is about 35709.9013860302. The cubic root of 1275197057 is about 1084.4073035492.

The spelling of 1275197057 in words is "one billion, two hundred seventy-five million, one hundred ninety-seven thousand, fifty-seven".