6315121 has 2 divisors, whose sum is σ = 6315122. Its totient is φ = 6315120.

The previous prime is 6315091. The next prime is 6315131. The reversal of 6315121 is 1215136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6305121 + 10000 = 2511^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 6315121 - 2⁷ = 6314993 is a prime.

It is equal to p₄₃₃₀₂₇ and since 6315121 and 433027 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6315131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157560 + 3157561.

It is an arithmetic number, because the mean of its divisors is an integer number (3157561).

Almost surely, 2^6315121 is an apocalyptic number.

It is an amenable number.

6315121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315121 is an equidigital number, since it uses as much as digits as its factorization.

6315121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 6315121 is about 2512.9904496436. The cubic root of 6315121 is about 184.8391199361.

The spelling of 6315121 in words is "six million, three hundred fifteen thousand, one hundred twenty-one".