3111457 has 2 divisors, whose sum is σ = 3111458. Its totient is φ = 3111456.

The previous prime is 3111431. The next prime is 3111481. The reversal of 3111457 is 7541113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2027776 + 1083681 = 1424^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111457 - 2¹⁵ = 3078689 is a prime.

It is not a weakly prime, because it can be changed into another prime (3111487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555728 + 1555729.

It is an arithmetic number, because the mean of its divisors is an integer number (1555729).

Almost surely, 2^3111457 is an apocalyptic number.

It is an amenable number.

3111457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111457 is an equidigital number, since it uses as much as digits as its factorization.

3111457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 3111457 is about 1763.9322549350. The cubic root of 3111457 is about 145.9893812256.

The spelling of 3111457 in words is "three million, one hundred eleven thousand, four hundred fifty-seven".