16136540 has 48 divisors (see below), whose sum is σ = 39244800. Its totient is φ = 5458752.

The previous prime is 16136531. The next prime is 16136579. The reversal of 16136540 is 4563161.

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, 10331 + ... + 11789.

It is an arithmetic number, because the mean of its divisors is an integer number (817600).

Almost surely, 2^16136540 is an apocalyptic number.

16136540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16136540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19622400).

16136540 is an abundant number, since it is smaller than the sum of its proper divisors (23108260).

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

16136540 is a wasteful number, since it uses less digits than its factorization.

16136540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 16136540 is about 4017.0312420991. The cubic root of 16136540 is about 252.6989707059.

The spelling of 16136540 in words is "sixteen million, one hundred thirty-six thousand, five hundred forty".