1457243 has 4 divisors (see below), whose sum is σ = 1533960. Its totient is φ = 1380528.

The previous prime is 1457219. The next prime is 1457251. The reversal of 1457243 is 3427541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3427541 = 13 ⋅263657.

It is a cyclic number.

It is not a de Polignac number, because 1457243 - 2¹⁰ = 1456219 is a prime.

It is a super-2 number, since 2×1457243² = 4247114322098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457213) 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, 38330 + ... + 38367.

It is an arithmetic number, because the mean of its divisors is an integer number (383490).

2^1457243 is an apocalyptic number.

1457243 is a deficient number, since it is larger than the sum of its proper divisors (76717).

1457243 is an equidigital number, since it uses as much as digits as its factorization.

1457243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76716.

The product of its digits is 3360, while the sum is 26.

The square root of 1457243 is about 1207.1632035479. The cubic root of 1457243 is about 113.3732663970.

The spelling of 1457243 in words is "one million, four hundred fifty-seven thousand, two hundred forty-three".