1457111 has 2 divisors, whose sum is σ = 1457112. Its totient is φ = 1457110.

The previous prime is 1457083. The next prime is 1457143. The reversal of 1457111 is 1117541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1457111 - 2¹⁰ = 1456087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728555 + 728556.

It is an arithmetic number, because the mean of its divisors is an integer number (728556).

2^1457111 is an apocalyptic number.

1457111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457111 is an equidigital number, since it uses as much as digits as its factorization.

1457111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 140, while the sum is 20.

The square root of 1457111 is about 1207.1085286750. The cubic root of 1457111 is about 113.3698431008.

The spelling of 1457111 in words is "one million, four hundred fifty-seven thousand, one hundred eleven".