12251761 has 2 divisors, whose sum is σ = 12251762. Its totient is φ = 12251760.

The previous prime is 12251741. The next prime is 12251797. The reversal of 12251761 is 16715221.

12251761 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 390625 = 3444^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 12251761 - 2⁷ = 12251633 is a prime.

It is a super-2 number, since 2×12251761² = 300211295202242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12251731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6125880 + 6125881.

It is an arithmetic number, because the mean of its divisors is an integer number (6125881).

Almost surely, 2^12251761 is an apocalyptic number.

It is an amenable number.

12251761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12251761 is an equidigital number, since it uses as much as digits as its factorization.

12251761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 12251761 is about 3500.2515623881. The cubic root of 12251761 is about 230.5328603026.

Adding to 12251761 its reverse (16715221), we get a palindrome (28966982).

The spelling of 12251761 in words is "twelve million, two hundred fifty-one thousand, seven hundred sixty-one".