14405861 has 2 divisors, whose sum is σ = 14405862. Its totient is φ = 14405860.

The previous prime is 14405803. The next prime is 14405869. The reversal of 14405861 is 16850441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 155236 = 3775^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 14405861 - 2²² = 10211557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14405869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7202930 + 7202931.

It is an arithmetic number, because the mean of its divisors is an integer number (7202931).

Almost surely, 2^14405861 is an apocalyptic number.

It is an amenable number.

14405861 is a deficient number, since it is larger than the sum of its proper divisors (1).

14405861 is an equidigital number, since it uses as much as digits as its factorization.

14405861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 14405861 is about 3795.5053681954. The cubic root of 14405861 is about 243.3210825550.

The spelling of 14405861 in words is "fourteen million, four hundred five thousand, eight hundred sixty-one".