12061577 has 4 divisors (see below), whose sum is σ = 13158096. Its totient is φ = 10965060.

The previous prime is 12061549. The next prime is 12061579. The reversal of 12061577 is 77516021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77516021 = 11 ⋅7046911.

It is a cyclic number.

It is not a de Polignac number, because 12061577 - 2⁸ = 12061321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061579) 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, 548243 + ... + 548264.

It is an arithmetic number, because the mean of its divisors is an integer number (3289524).

Almost surely, 2^12061577 is an apocalyptic number.

It is an amenable number.

12061577 is a deficient number, since it is larger than the sum of its proper divisors (1096519).

12061577 is a wasteful number, since it uses less digits than its factorization.

12061577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096518.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 12061577 is about 3472.9781168329. The cubic root of 12061577 is about 229.3337809750. Note that the first 3 decimals are identical.

Adding to 12061577 its reverse (77516021), we get a palindrome (89577598).

The spelling of 12061577 in words is "twelve million, sixty-one thousand, five hundred seventy-seven".