201615140 has 24 divisors (see below), whose sum is σ = 424374720. Its totient is φ = 80458848.

The previous prime is 201615131. The next prime is 201615151. The reversal of 201615140 is 41516102.

201615140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2702 + ... + 20261.

It is an arithmetic number, because the mean of its divisors is an integer number (17682280).

Almost surely, 2^201615140 is an apocalyptic number.

201615140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201615140 is an abundant number, since it is smaller than the sum of its proper divisors (222759580).

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

201615140 is a wasteful number, since it uses less digits than its factorization.

201615140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23411 (or 23409 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 201615140 is about 14199.1246209053. The cubic root of 201615140 is about 586.3735615461.

The spelling of 201615140 in words is "two hundred one million, six hundred fifteen thousand, one hundred forty".