14781965 has 24 divisors (see below), whose sum is σ = 19908504. Its totient is φ = 10524800.

The previous prime is 14781953. The next prime is 14781973. The reversal of 14781965 is 56918741.

It can be written as a sum of positive squares in 4 ways, for example, as 1684804 + 13097161 = 1298^2 + 3619^2 .

It is not a de Polignac number, because 14781965 - 2¹⁸ = 14519821 is a prime.

It is a super-2 number, since 2×14781965² = 437012978522450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31835 + ... + 32295.

It is an arithmetic number, because the mean of its divisors is an integer number (829521).

Almost surely, 2^14781965 is an apocalyptic number.

It is an amenable number.

14781965 is a deficient number, since it is larger than the sum of its proper divisors (5126539).

14781965 is a wasteful number, since it uses less digits than its factorization.

14781965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 530 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 14781965 is about 3844.7321103037. The cubic root of 14781965 is about 245.4204359427.

It can be divided in two parts, 1478 and 1965, that added together give a palindrome (3443).

The spelling of 14781965 in words is "fourteen million, seven hundred eighty-one thousand, nine hundred sixty-five".