12651377 has 2 divisors, whose sum is σ = 12651378. Its totient is φ = 12651376.

The previous prime is 12651371. The next prime is 12651389. The reversal of 12651377 is 77315621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 6241 = 3556^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 12651377 - 2⁶ = 12651313 is a prime.

It is a super-2 number, since 2×12651377² = 320114679992258, which contains 22 as substring.

It is equal to p₈₂₇₉₆₀ and since 12651377 and 827960 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 (12651371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325688 + 6325689.

It is an arithmetic number, because the mean of its divisors is an integer number (6325689).

Almost surely, 2^12651377 is an apocalyptic number.

It is an amenable number.

12651377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12651377 is an equidigital number, since it uses as much as digits as its factorization.

12651377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 32.

The square root of 12651377 is about 3556.8774226841. The cubic root of 12651377 is about 233.0125248844.

Adding to 12651377 its reverse (77315621), we get a palindrome (89966998).

The spelling of 12651377 in words is "twelve million, six hundred fifty-one thousand, three hundred seventy-seven".