6451457 has 4 divisors (see below), whose sum is σ = 6458436. Its totient is φ = 6444480.

The previous prime is 6451451. The next prime is 6451463. The reversal of 6451457 is 7541546.

6451457 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (6451451) and next prime (6451463).

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 2768896 = 1919^2 + 1664^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6451457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6451451) 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, 1844 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (1614609).

Almost surely, 2^6451457 is an apocalyptic number.

It is an amenable number.

6451457 is a deficient number, since it is larger than the sum of its proper divisors (6979).

6451457 is a wasteful number, since it uses less digits than its factorization.

6451457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978.

The product of its digits is 16800, while the sum is 32.

The square root of 6451457 is about 2539.9718502377. The cubic root of 6451457 is about 186.1598137007.

The spelling of 6451457 in words is "six million, four hundred fifty-one thousand, four hundred fifty-seven".