16641245 has 16 divisors (see below), whose sum is σ = 21384000. Its totient is φ = 12394368.

The previous prime is 16641239. The next prime is 16641263. The reversal of 16641245 is 54214661.

It is a cyclic number.

It is not a de Polignac number, because 16641245 - 2¹⁸ = 16379101 is a prime.

It is a super-3 number, since 3×16641245³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4121 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^16641245 is an apocalyptic number.

It is an amenable number.

16641245 is a deficient number, since it is larger than the sum of its proper divisors (4742755).

16641245 is a wasteful number, since it uses less digits than its factorization.

16641245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052.

The product of its digits is 5760, while the sum is 29.

The square root of 16641245 is about 4079.3682108876. The cubic root of 16641245 is about 255.3065389573.

The spelling of 16641245 in words is "sixteen million, six hundred forty-one thousand, two hundred forty-five".