16345172 has 6 divisors (see below), whose sum is σ = 28604058. Its totient is φ = 8172584.

The previous prime is 16345171. The next prime is 16345229. The reversal of 16345172 is 27154361.

16345172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15888196 + 456976 = 3986^2 + 676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043143 + ... + 2043150.

It is an arithmetic number, because the mean of its divisors is an integer number (4767343).

Almost surely, 2^16345172 is an apocalyptic number.

It is an amenable number.

16345172 is a deficient number, since it is larger than the sum of its proper divisors (12258886).

16345172 is a wasteful number, since it uses less digits than its factorization.

16345172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086297 (or 4086295 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 16345172 is about 4042.9162741764. The cubic root of 16345172 is about 253.7833728664.

The spelling of 16345172 in words is "sixteen million, three hundred forty-five thousand, one hundred seventy-two".