12909098 has 4 divisors (see below), whose sum is σ = 19363650. Its totient is φ = 6454548.

The previous prime is 12909097. The next prime is 12909109. The reversal of 12909098 is 89090921.

12909098 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 can be written as a sum of positive squares in only one way, i.e., 8427409 + 4481689 = 2903^2 + 2117^2 .

It is a super-2 number, since 2×12909098² = 333289622347208, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12909097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3227273 + ... + 3227276.

Almost surely, 2^12909098 is an apocalyptic number.

12909098 is a deficient number, since it is larger than the sum of its proper divisors (6454552).

12909098 is an equidigital number, since it uses as much as digits as its factorization.

12909098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454551.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 12909098 is about 3592.9233223101. The cubic root of 12909098 is about 234.5841324589.

The spelling of 12909098 in words is "twelve million, nine hundred nine thousand, ninety-eight".