1156457 has 2 divisors, whose sum is σ = 1156458. Its totient is φ = 1156456.

The previous prime is 1156453. The next prime is 1156483. The reversal of 1156457 is 7546511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 477481 = 824^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156457 - 2² = 1156453 is a prime.

It is not a weakly prime, because it can be changed into another prime (1156451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578228 + 578229.

It is an arithmetic number, because the mean of its divisors is an integer number (578229).

2^1156457 is an apocalyptic number.

It is an amenable number.

1156457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156457 is an equidigital number, since it uses as much as digits as its factorization.

1156457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 1156457 is about 1075.3869071176. The cubic root of 1156457 is about 104.9646744356.

The spelling of 1156457 in words is "one million, one hundred fifty-six thousand, four hundred fifty-seven".