16145457 has 4 divisors (see below), whose sum is σ = 21527280. Its totient is φ = 10763636.

The previous prime is 16145453. The next prime is 16145477. The reversal of 16145457 is 75454161.

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 16145457 - 2² = 16145453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16145453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690907 + ... + 2690912.

It is an arithmetic number, because the mean of its divisors is an integer number (5381820).

Almost surely, 2^16145457 is an apocalyptic number.

It is an amenable number.

16145457 is a deficient number, since it is larger than the sum of its proper divisors (5381823).

16145457 is an equidigital number, since it uses as much as digits as its factorization.

16145457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381822.

The product of its digits is 16800, while the sum is 33.

The square root of 16145457 is about 4018.1409880690. The cubic root of 16145457 is about 252.7455090135.

The spelling of 16145457 in words is "sixteen million, one hundred forty-five thousand, four hundred fifty-seven".