12654157 has 2 divisors, whose sum is σ = 12654158. Its totient is φ = 12654156.

The previous prime is 12654149. The next prime is 12654221. The reversal of 12654157 is 75145621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10361961 + 2292196 = 3219^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 12654157 - 2³ = 12654149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12654127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327078 + 6327079.

It is an arithmetic number, because the mean of its divisors is an integer number (6327079).

Almost surely, 2^12654157 is an apocalyptic number.

It is an amenable number.

12654157 is a deficient number, since it is larger than the sum of its proper divisors (1).

12654157 is an equidigital number, since it uses as much as digits as its factorization.

12654157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 12654157 is about 3557.2681934316. The cubic root of 12654157 is about 233.0295909418.

Adding to 12654157 its reverse (75145621), we get a palindrome (87799778).

The spelling of 12654157 in words is "twelve million, six hundred fifty-four thousand, one hundred fifty-seven".