1457689507 has 4 divisors (see below), whose sum is σ = 1459427760. Its totient is φ = 1455951256.

The previous prime is 1457689501. The next prime is 1457689517. The reversal of 1457689507 is 7059867541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7059867541 = 757 ⋅9326113.

It is a cyclic number.

It is not a de Polignac number, because 1457689507 - 2¹¹ = 1457687459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457689501) 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, 867868 + ... + 869545.

It is an arithmetic number, because the mean of its divisors is an integer number (364856940).

Almost surely, 2^1457689507 is an apocalyptic number.

1457689507 is a deficient number, since it is larger than the sum of its proper divisors (1738253).

1457689507 is an equidigital number, since it uses as much as digits as its factorization.

1457689507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738252.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The square root of 1457689507 is about 38179.7001952608. The cubic root of 1457689507 is about 1133.8484460496.

The spelling of 1457689507 in words is "one billion, four hundred fifty-seven million, six hundred eighty-nine thousand, five hundred seven".