14657381 has 2 divisors, whose sum is σ = 14657382. Its totient is φ = 14657380.

The previous prime is 14657369. The next prime is 14657387. The reversal of 14657381 is 18375641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9205156 + 5452225 = 3034^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 14657381 - 2¹⁰ = 14656357 is a prime.

It is a super-2 number, since 2×14657381² = 429677635558322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14657387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7328690 + 7328691.

It is an arithmetic number, because the mean of its divisors is an integer number (7328691).

Almost surely, 2^14657381 is an apocalyptic number.

It is an amenable number.

14657381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14657381 is an equidigital number, since it uses as much as digits as its factorization.

14657381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 14657381 is about 3828.4959187650. The cubic root of 14657381 is about 244.7290131668.

The spelling of 14657381 in words is "fourteen million, six hundred fifty-seven thousand, three hundred eighty-one".