12961499 has 2 divisors, whose sum is σ = 12961500. Its totient is φ = 12961498.

The previous prime is 12961483. The next prime is 12961537. The reversal of 12961499 is 99416921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12961499 - 2⁴ = 12961483 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12961469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6480749 + 6480750.

It is an arithmetic number, because the mean of its divisors is an integer number (6480750).

Almost surely, 2^12961499 is an apocalyptic number.

12961499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12961499 is an equidigital number, since it uses as much as digits as its factorization.

12961499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 12961499 is about 3600.2081884247. The cubic root of 12961499 is about 234.9011142731.

The spelling of 12961499 in words is "twelve million, nine hundred sixty-one thousand, four hundred ninety-nine".