12315051 has 32 divisors (see below), whose sum is σ = 21765120. Its totient is φ = 6728832.

The previous prime is 12315013. The next prime is 12315077. The reversal of 12315051 is 15051321.

It is not a de Polignac number, because 12315051 - 2¹¹ = 12313003 is a prime.

It is a super-2 number, since 2×12315051² = 303320962265202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12315001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2931 + ... + 5763.

It is an arithmetic number, because the mean of its divisors is an integer number (680160).

Almost surely, 2^12315051 is an apocalyptic number.

12315051 is a deficient number, since it is larger than the sum of its proper divisors (9450069).

12315051 is a wasteful number, since it uses less digits than its factorization.

12315051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 12315051 is about 3509.2806955272. The cubic root of 12315051 is about 230.9291400130.

Adding to 12315051 its reverse (15051321), we get a palindrome (27366372).

It can be divided in two parts, 123150 and 51, that added together give a square (123201 = 351²).

The spelling of 12315051 in words is "twelve million, three hundred fifteen thousand, fifty-one".