14311961 has 4 divisors (see below), whose sum is σ = 14582052. Its totient is φ = 14041872.

The previous prime is 14311951. The next prime is 14311981. The reversal of 14311961 is 16911341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16911341 = 43 ⋅393287.

It can be written as a sum of positive squares in 2 ways, for example, as 12823561 + 1488400 = 3581^2 + 1220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14311961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14311961.

It is not an unprimeable number, because it can be changed into a prime (14311901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134966 + ... + 135071.

It is an arithmetic number, because the mean of its divisors is an integer number (3645513).

Almost surely, 2^14311961 is an apocalyptic number.

It is an amenable number.

14311961 is a deficient number, since it is larger than the sum of its proper divisors (270091).

14311961 is an equidigital number, since it uses as much as digits as its factorization.

14311961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270090.

The product of its digits is 648, while the sum is 26.

The square root of 14311961 is about 3783.1152506896. The cubic root of 14311961 is about 242.7912594888.

The spelling of 14311961 in words is "fourteen million, three hundred eleven thousand, nine hundred sixty-one".