14945581 has 4 divisors (see below), whose sum is σ = 17080672. Its totient is φ = 12810492.

The previous prime is 14945573. The next prime is 14945587. The reversal of 14945581 is 18554941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14945581 - 2³ = 14945573 is a prime.

It is a super-2 number, since 2×14945581² = 446740782855122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14945581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14945587) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1067535 + ... + 1067548.

It is an arithmetic number, because the mean of its divisors is an integer number (4270168).

Almost surely, 2^14945581 is an apocalyptic number.

It is an amenable number.

14945581 is a deficient number, since it is larger than the sum of its proper divisors (2135091).

14945581 is an equidigital number, since it uses as much as digits as its factorization.

14945581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135090.

The product of its digits is 28800, while the sum is 37.

The square root of 14945581 is about 3865.9514999544. The cubic root of 14945581 is about 246.3226042709.

The spelling of 14945581 in words is "fourteen million, nine hundred forty-five thousand, five hundred eighty-one".