16135140 has 96 divisors (see below), whose sum is σ = 52948224. Its totient is φ = 3594240.

The previous prime is 16135109. The next prime is 16135169. The reversal of 16135140 is 4153161.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16752 + ... + 17688.

It is an arithmetic number, because the mean of its divisors is an integer number (551544).

Almost surely, 2^16135140 is an apocalyptic number.

16135140 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 16135140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26474112).

16135140 is an abundant number, since it is smaller than the sum of its proper divisors (36813084).

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

16135140 is a wasteful number, since it uses less digits than its factorization.

16135140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 16135140 is about 4016.8569802770. The cubic root of 16135140 is about 252.6916624727.

The spelling of 16135140 in words is "sixteen million, one hundred thirty-five thousand, one hundred forty".