1457531 has 4 divisors (see below), whose sum is σ = 1472064. Its totient is φ = 1443000.

The previous prime is 1457513. The next prime is 1457551. The reversal of 1457531 is 1357541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1357541 = 101 ⋅13441.

It is a cyclic number.

It is not a de Polignac number, because 1457531 - 2¹⁸ = 1195387 is a prime.

It is a super-2 number, since 2×1457531² = 4248793231922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1457531.

It is not an unprimeable number, because it can be changed into a prime (1457501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7115 + ... + 7316.

It is an arithmetic number, because the mean of its divisors is an integer number (368016).

2^1457531 is an apocalyptic number.

1457531 is a deficient number, since it is larger than the sum of its proper divisors (14533).

1457531 is a wasteful number, since it uses less digits than its factorization.

1457531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14532.

The product of its digits is 2100, while the sum is 26.

The square root of 1457531 is about 1207.2824855849. The cubic root of 1457531 is about 113.3807346892.

The spelling of 1457531 in words is "one million, four hundred fifty-seven thousand, five hundred thirty-one".