14851561 has 2 divisors, whose sum is σ = 14851562. Its totient is φ = 14851560.

The previous prime is 14851549. The next prime is 14851579. The reversal of 14851561 is 16515841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 5851561 = 3000^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 14851561 - 2⁷ = 14851433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14851861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7425780 + 7425781.

It is an arithmetic number, because the mean of its divisors is an integer number (7425781).

Almost surely, 2^14851561 is an apocalyptic number.

It is an amenable number.

14851561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14851561 is an equidigital number, since it uses as much as digits as its factorization.

14851561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 31.

The square root of 14851561 is about 3853.7723077525. The cubic root of 14851561 is about 245.8049934071.

The spelling of 14851561 in words is "fourteen million, eight hundred fifty-one thousand, five hundred sixty-one".