12691059 has 8 divisors (see below), whose sum is σ = 17467392. Its totient is φ = 8187720.

The previous prime is 12691057. The next prime is 12691079. The reversal of 12691059 is 95019621.

12691059 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 a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12691059 - 2¹ = 12691057 is a prime.

It is a super-2 number, since 2×12691059² = 322125957082962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12691057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68139 + ... + 68324.

It is an arithmetic number, because the mean of its divisors is an integer number (2183424).

Almost surely, 2^12691059 is an apocalyptic number.

12691059 is a deficient number, since it is larger than the sum of its proper divisors (4776333).

12691059 is a wasteful number, since it uses less digits than its factorization.

12691059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136497.

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

The square root of 12691059 is about 3562.4512628245. The cubic root of 12691059 is about 233.2558910802.

The spelling of 12691059 in words is "twelve million, six hundred ninety-one thousand, fifty-nine".