4012457 has 2 divisors, whose sum is σ = 4012458. Its totient is φ = 4012456.

The previous prime is 4012451. The next prime is 4012483. The reversal of 4012457 is 7542104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3279721 + 732736 = 1811^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012457 - 2⁴ = 4012441 is a prime.

It is a super-2 number, since 2×4012457² = 32199622353698, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4012451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006228 + 2006229.

It is an arithmetic number, because the mean of its divisors is an integer number (2006229).

Almost surely, 2^4012457 is an apocalyptic number.

It is an amenable number.

4012457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012457 is an equidigital number, since it uses as much as digits as its factorization.

4012457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 4012457 is about 2003.1118291299. Note that the first 3 decimals coincide. The cubic root of 4012457 is about 158.9047198887.

The spelling of 4012457 in words is "four million, twelve thousand, four hundred fifty-seven".