1457999 has 2 divisors, whose sum is σ = 1458000. Its totient is φ = 1457998.

The previous prime is 1457983. The next prime is 1458011. The reversal of 1457999 is 9997541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1457999 - 2⁴ = 1457983 is a prime.

It is a super-2 number, since 2×1457999² = 4251522168002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728999 + 729000.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

2^1457999 is an apocalyptic number.

1457999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457999 is an equidigital number, since it uses as much as digits as its factorization.

1457999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 44.

The square root of 1457999 is about 1207.4762937632. The cubic root of 1457999 is about 113.3928685662.

The spelling of 1457999 in words is "one million, four hundred fifty-seven thousand, nine hundred ninety-nine".