14429981 has 2 divisors, whose sum is σ = 14429982. Its totient is φ = 14429980.

The previous prime is 14429953. The next prime is 14430001. The reversal of 14429981 is 18992441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7513081 + 6916900 = 2741^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 14429981 - 2⁶ = 14429917 is a prime.

It is a super-2 number, since 2×14429981² = 416448703320722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14429081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7214990 + 7214991.

It is an arithmetic number, because the mean of its divisors is an integer number (7214991).

Almost surely, 2^14429981 is an apocalyptic number.

It is an amenable number.

14429981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14429981 is an equidigital number, since it uses as much as digits as its factorization.

14429981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 14429981 is about 3798.6814817776. The cubic root of 14429981 is about 243.4568058342.

The spelling of 14429981 in words is "fourteen million, four hundred twenty-nine thousand, nine hundred eighty-one".