12646051 has 4 divisors (see below), whose sum is σ = 13795704. Its totient is φ = 11496400.

The previous prime is 12646043. The next prime is 12646057. The reversal of 12646051 is 15064621.

12646051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12646051 - 2³ = 12646043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12646057) 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, 574810 + ... + 574831.

It is an arithmetic number, because the mean of its divisors is an integer number (3448926).

Almost surely, 2^12646051 is an apocalyptic number.

12646051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12646051 is a deficient number, since it is larger than the sum of its proper divisors (1149653).

12646051 is a wasteful number, since it uses less digits than its factorization.

12646051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149652.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12646051 is about 3556.1286534657. The cubic root of 12646051 is about 232.9798222809.

The spelling of 12646051 in words is "twelve million, six hundred forty-six thousand, fifty-one".