1457925647 has 4 divisors (see below), whose sum is σ = 1459954080. Its totient is φ = 1455897216.

The previous prime is 1457925631. The next prime is 1457925649. The reversal of 1457925647 is 7465297541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7465297541 = 13 ⋅574253657.

It is a cyclic number.

It is not a de Polignac number, because 1457925647 - 2⁴ = 1457925631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1457925595 and 1457925604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457925649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013138 + ... + 1014575.

It is an arithmetic number, because the mean of its divisors is an integer number (364988520).

Almost surely, 2^1457925647 is an apocalyptic number.

1457925647 is a deficient number, since it is larger than the sum of its proper divisors (2028433).

1457925647 is an equidigital number, since it uses as much as digits as its factorization.

1457925647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028432.

The product of its digits is 2116800, while the sum is 50.

The square root of 1457925647 is about 38182.7925510956. The cubic root of 1457925647 is about 1133.9096690819.

The spelling of 1457925647 in words is "one billion, four hundred fifty-seven million, nine hundred twenty-five thousand, six hundred forty-seven".