15940853 has 2 divisors, whose sum is σ = 15940854. Its totient is φ = 15940852.

The previous prime is 15940819. The next prime is 15940861. The reversal of 15940853 is 35804951.

15940853 is nontrivially palindromic in base 12.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 6589489 = 3058^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 15940853 - 2⁸ = 15940597 is a prime.

It is a super-2 number, since 2×15940853² = 508221588735218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15940153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7970426 + 7970427.

It is an arithmetic number, because the mean of its divisors is an integer number (7970427).

Almost surely, 2^15940853 is an apocalyptic number.

It is an amenable number.

15940853 is a deficient number, since it is larger than the sum of its proper divisors (1).

15940853 is an equidigital number, since it uses as much as digits as its factorization.

15940853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 15940853 is about 3992.5997795922. The cubic root of 15940853 is about 251.6733242882.

The spelling of 15940853 in words is "fifteen million, nine hundred forty thousand, eight hundred fifty-three".