16264945 has 8 divisors (see below), whose sum is σ = 19546920. Its totient is φ = 12992640.

The previous prime is 16264909. The next prime is 16264967. The reversal of 16264945 is 54946261.

It can be written as a sum of positive squares in 4 ways, for example, as 1140624 + 15124321 = 1068^2 + 3889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16264945 - 2⁹ = 16264433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2035 + ... + 6055.

It is an arithmetic number, because the mean of its divisors is an integer number (2443365).

Almost surely, 2^16264945 is an apocalyptic number.

It is an amenable number.

16264945 is a deficient number, since it is larger than the sum of its proper divisors (3281975).

16264945 is an equidigital number, since it uses as much as digits as its factorization.

16264945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835.

The product of its digits is 51840, while the sum is 37.

The square root of 16264945 is about 4032.9821472454. The cubic root of 16264945 is about 253.3674767385.

The spelling of 16264945 in words is "sixteen million, two hundred sixty-four thousand, nine hundred forty-five".