16115090 has 16 divisors (see below), whose sum is σ = 29082240. Its totient is φ = 6429360.

The previous prime is 16115089. The next prime is 16115093. The reversal of 16115090 is 9051161.

It is a super-2 number, since 2×16115090² = 519392251416200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16115093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441 + ... + 6179.

It is an arithmetic number, because the mean of its divisors is an integer number (1817640).

Almost surely, 2^16115090 is an apocalyptic number.

16115090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16115090 is a deficient number, since it is larger than the sum of its proper divisors (12967150).

16115090 is a wasteful number, since it uses less digits than its factorization.

16115090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 16115090 is about 4014.3604721051. The cubic root of 16115090 is about 252.5869517220.

It can be divided in two parts, 161 and 15090, that added together give a palindrome (15251).

The spelling of 16115090 in words is "sixteen million, one hundred fifteen thousand, ninety".