14621645 has 4 divisors (see below), whose sum is σ = 17545980. Its totient is φ = 11697312.

The previous prime is 14621617. The next prime is 14621687. The reversal of 14621645 is 54612641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4502884 + 10118761 = 2122^2 + 3181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14621645 is a prime.

It is a super-3 number, since 3×14621645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1462160 + ... + 1462169.

It is an arithmetic number, because the mean of its divisors is an integer number (4386495).

Almost surely, 2^14621645 is an apocalyptic number.

It is an amenable number.

14621645 is a deficient number, since it is larger than the sum of its proper divisors (2924335).

14621645 is an equidigital number, since it uses as much as digits as its factorization.

14621645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924334.

The product of its digits is 5760, while the sum is 29.

The square root of 14621645 is about 3823.8259636129. The cubic root of 14621645 is about 244.5299609349.

The spelling of 14621645 in words is "fourteen million, six hundred twenty-one thousand, six hundred forty-five".