16245138 has 32 divisors (see below), whose sum is σ = 39989376. Its totient is φ = 4284288.

The previous prime is 16245091. The next prime is 16245139. The reversal of 16245138 is 83154261.

It is not an unprimeable number, because it can be changed into a prime (16245139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14331 + ... + 15422.

It is an arithmetic number, because the mean of its divisors is an integer number (1249668).

Almost surely, 2^16245138 is an apocalyptic number.

16245138 is an abundant number, since it is smaller than the sum of its proper divisors (23744238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16245138 is a wasteful number, since it uses less digits than its factorization.

16245138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29778.

The product of its digits is 5760, while the sum is 30.

The square root of 16245138 is about 4030.5257721543. The cubic root of 16245138 is about 253.2645869941.

Adding to 16245138 its reverse (83154261), we get a palindrome (99399399).

The spelling of 16245138 in words is "sixteen million, two hundred forty-five thousand, one hundred thirty-eight".