14572781 has 2 divisors, whose sum is σ = 14572782. Its totient is φ = 14572780.

The previous prime is 14572763. The next prime is 14572787. The reversal of 14572781 is 18727541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 1359556 = 3635^2 + 1166^2 .

It is a cyclic number.

It is not a de Polignac number, because 14572781 - 2¹⁰ = 14571757 is a prime.

It is a super-2 number, since 2×14572781² = 424731892147922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14572787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7286390 + 7286391.

It is an arithmetic number, because the mean of its divisors is an integer number (7286391).

Almost surely, 2^14572781 is an apocalyptic number.

It is an amenable number.

14572781 is a deficient number, since it is larger than the sum of its proper divisors (1).

14572781 is an equidigital number, since it uses as much as digits as its factorization.

14572781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 35.

The square root of 14572781 is about 3817.4312043572. The cubic root of 14572781 is about 244.2572591237.

The spelling of 14572781 in words is "fourteen million, five hundred seventy-two thousand, seven hundred eighty-one".