12950109 has 6 divisors (see below), whose sum is σ = 18705726. Its totient is φ = 8633400.

The previous prime is 12950101. The next prime is 12950129. The reversal of 12950109 is 90105921.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 205209 = 3570^2 + 453^2 .

It is not a de Polignac number, because 12950109 - 2³ = 12950101 is a prime.

It is a super-2 number, since 2×12950109² = 335410646223762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 719442 + ... + 719459.

It is an arithmetic number, because the mean of its divisors is an integer number (3117621).

Almost surely, 2^12950109 is an apocalyptic number.

It is an amenable number.

12950109 is a deficient number, since it is larger than the sum of its proper divisors (5755617).

12950109 is a wasteful number, since it uses less digits than its factorization.

12950109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438907 (or 1438904 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 12950109 is about 3598.6259877903. The cubic root of 12950109 is about 234.8322871572.

The spelling of 12950109 in words is "twelve million, nine hundred fifty thousand, one hundred nine".