1457117 has 4 divisors (see below), whose sum is σ = 1466556. Its totient is φ = 1447680.

The previous prime is 1457111. The next prime is 1457143. The reversal of 1457117 is 7117541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7117541 = 61 ⋅116681.

It can be written as a sum of positive squares in 2 ways, for example, as 900601 + 556516 = 949^2 + 746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457117 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457111) 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, 4484 + ... + 4797.

It is an arithmetic number, because the mean of its divisors is an integer number (366639).

2^1457117 is an apocalyptic number.

It is an amenable number.

1457117 is a deficient number, since it is larger than the sum of its proper divisors (9439).

1457117 is an equidigital number, since it uses as much as digits as its factorization.

1457117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438.

The product of its digits is 980, while the sum is 26.

The square root of 1457117 is about 1207.1110139502. Note that the first 3 decimals coincide. The cubic root of 1457117 is about 113.3699987097.

The spelling of 1457117 in words is "one million, four hundred fifty-seven thousand, one hundred seventeen".