12699051 has 12 divisors (see below), whose sum is σ = 17964072. Its totient is φ = 7952064.

The previous prime is 12699023. The next prime is 12699073. The reversal of 12699051 is 15099621.

12699051 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12699051 - 2¹³ = 12690859 is a prime.

It is a super-2 number, since 2×12699051² = 322531792601202, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12699091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25200 + ... + 25698.

It is an arithmetic number, because the mean of its divisors is an integer number (1497006).

Almost surely, 2^12699051 is an apocalyptic number.

12699051 is a deficient number, since it is larger than the sum of its proper divisors (5265021).

12699051 is an frugal number, since it uses more digits than its factorization.

12699051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 12699051 is about 3563.5727858429. The cubic root of 12699051 is about 233.3048439139.

The spelling of 12699051 in words is "twelve million, six hundred ninety-nine thousand, fifty-one".