6468157 has 4 divisors (see below), whose sum is σ = 6473376. Its totient is φ = 6462940.

The previous prime is 6468149. The next prime is 6468167. The reversal of 6468157 is 7518646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7518646 = 2 ⋅3759323.

It is a cyclic number.

It is not a de Polignac number, because 6468157 - 2³ = 6468149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6468167) 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, 432 + ... + 3622.

It is an arithmetic number, because the mean of its divisors is an integer number (1618344).

Almost surely, 2^6468157 is an apocalyptic number.

It is an amenable number.

6468157 is a deficient number, since it is larger than the sum of its proper divisors (5219).

6468157 is a wasteful number, since it uses less digits than its factorization.

6468157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218.

The product of its digits is 40320, while the sum is 37.

The square root of 6468157 is about 2543.2571635601. The cubic root of 6468157 is about 186.3203040746.

The spelling of 6468157 in words is "six million, four hundred sixty-eight thousand, one hundred fifty-seven".