16031345 has 48 divisors (see below), whose sum is σ = 23889600. Its totient is φ = 10200960.

The previous prime is 16031341. The next prime is 16031363. The reversal of 16031345 is 54313061.

16031345 = 270² + 271² + ... + 407².

It is a happy number.

It is not a de Polignac number, because 16031345 - 2² = 16031341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 16031345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16031341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 552791 + ... + 552819.

It is an arithmetic number, because the mean of its divisors is an integer number (497700).

Almost surely, 2^16031345 is an apocalyptic number.

It is an amenable number.

16031345 is a deficient number, since it is larger than the sum of its proper divisors (7858255).

16031345 is a wasteful number, since it uses less digits than its factorization.

16031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 16031345 is about 4003.9162079144. The cubic root of 16031345 is about 252.1486535794.

The spelling of 16031345 in words is "sixteen million, thirty-one thousand, three hundred forty-five".