6156457 has 4 divisors (see below), whose sum is σ = 6176196. Its totient is φ = 6136720.

The previous prime is 6156443. The next prime is 6156487. The reversal of 6156457 is 7546516.

It is a happy number.

6156457 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 2785561 = 1836^2 + 1669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6156457 is a prime.

It is a Duffinian number.

6156457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6156407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9394 + ... + 10027.

It is an arithmetic number, because the mean of its divisors is an integer number (1544049).

Almost surely, 2^6156457 is an apocalyptic number.

It is an amenable number.

6156457 is a deficient number, since it is larger than the sum of its proper divisors (19739).

6156457 is a wasteful number, since it uses less digits than its factorization.

6156457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738.

The product of its digits is 25200, while the sum is 34.

The square root of 6156457 is about 2481.2208688466. The cubic root of 6156457 is about 183.2779774105.

The spelling of 6156457 in words is "six million, one hundred fifty-six thousand, four hundred fifty-seven".