14745521 has 6 divisors (see below), whose sum is σ = 17153010. Its totient is φ = 12638976.

The previous prime is 14745509. The next prime is 14745547. The reversal of 14745521 is 12554741.

It can be written as a sum of positive squares in only one way, i.e., 14714896 + 30625 = 3836^2 + 175^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14745521 is a prime.

It is a super-2 number, since 2×14745521² = 434860779122882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14745421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150416 + ... + 150513.

It is an arithmetic number, because the mean of its divisors is an integer number (2858835).

Almost surely, 2^14745521 is an apocalyptic number.

It is an amenable number.

14745521 is a deficient number, since it is larger than the sum of its proper divisors (2407489).

14745521 is an equidigital number, since it uses as much as digits as its factorization.

14745521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300943 (or 300936 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 14745521 is about 3839.9897135279. The cubic root of 14745521 is about 245.2185804424.

The spelling of 14745521 in words is "fourteen million, seven hundred forty-five thousand, five hundred twenty-one".