12577081 has 4 divisors (see below), whose sum is σ = 13720464. Its totient is φ = 11433700.

The previous prime is 12577079. The next prime is 12577087. The reversal of 12577081 is 18077521.

It is a happy number.

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 12577081 - 2¹ = 12577079 is a prime.

It is a super-2 number, since 2×12577081² = 316365932961122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12577087) 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, 571675 + ... + 571696.

It is an arithmetic number, because the mean of its divisors is an integer number (3430116).

Almost surely, 2^12577081 is an apocalyptic number.

12577081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12577081 is a deficient number, since it is larger than the sum of its proper divisors (1143383).

12577081 is a wasteful number, since it uses less digits than its factorization.

12577081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143382.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 12577081 is about 3546.4180520632. The cubic root of 12577081 is about 232.5555022233. Note that the first 4 decimals are identical.

It can be divided in two parts, 1257 and 7081, that added together give a palindrome (8338).

The spelling of 12577081 in words is "twelve million, five hundred seventy-seven thousand, eighty-one".