3109492961 has 4 divisors (see below), whose sum is σ = 3109607424. Its totient is φ = 3109378500.

The previous prime is 3109492957. The next prime is 3109492963. The reversal of 3109492961 is 1692949013.

It is a happy number.

3109492961 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1692949013 = 7 ⋅241849859.

It is a cyclic number.

It is not a de Polignac number, because 3109492961 - 2² = 3109492957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3109492963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9296 + ... + 79406.

It is an arithmetic number, because the mean of its divisors is an integer number (777401856).

Almost surely, 2^3109492961 is an apocalyptic number.

It is an amenable number.

3109492961 is a deficient number, since it is larger than the sum of its proper divisors (114463).

3109492961 is an equidigital number, since it uses as much as digits as its factorization.

3109492961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114462.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 3109492961 is about 55762.8277708367. The cubic root of 3109492961 is about 1459.5865722822.

The spelling of 3109492961 in words is "three billion, one hundred nine million, four hundred ninety-two thousand, nine hundred sixty-one".