12761137 has 4 divisors (see below), whose sum is σ = 12773376. Its totient is φ = 12748900.

The previous prime is 12761129. The next prime is 12761143. The reversal of 12761137 is 73116721.

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.

It is a cyclic number.

It is not a de Polignac number, because 12761137 - 2³ = 12761129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12761197) 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, 4393 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 2^12761137 is an apocalyptic number.

It is an amenable number.

12761137 is a deficient number, since it is larger than the sum of its proper divisors (12239).

12761137 is a wasteful number, since it uses less digits than its factorization.

12761137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12238.

The product of its digits is 1764, while the sum is 28.

The square root of 12761137 is about 3572.2733657994. The cubic root of 12761137 is about 233.6844371779.

Adding to 12761137 its reverse (73116721), we get a palindrome (85877858).

The spelling of 12761137 in words is "twelve million, seven hundred sixty-one thousand, one hundred thirty-seven".