201016140 has 48 divisors (see below), whose sum is σ = 606143328. Its totient is φ = 49480704.

The previous prime is 201016117. The next prime is 201016141. The reversal of 201016140 is 41610102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (201016141) 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, 128077 + ... + 129636.

It is an arithmetic number, because the mean of its divisors is an integer number (12627986).

Almost surely, 2^201016140 is an apocalyptic number.

201016140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201016140 is an abundant number, since it is smaller than the sum of its proper divisors (405127188).

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

201016140 is a wasteful number, since it uses less digits than its factorization.

201016140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257738 (or 257736 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 201016140 is about 14178.0160812435. The cubic root of 201016140 is about 585.7922788410.

Adding to 201016140 its reverse (41610102), we get a palindrome (242626242).

The spelling of 201016140 in words is "two hundred one million, sixteen thousand, one hundred forty".