201151140 has 48 divisors (see below), whose sum is σ = 596356992. Its totient is φ = 50484736.

The previous prime is 201151127. The next prime is 201151141. The reversal of 201151140 is 41151102.

It is a happy number.

It is a super-2 number, since 2×201151140² = 80923562246599200, which contains 22 as substring.

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 (201151141) 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, 97584 + ... + 99623.

It is an arithmetic number, because the mean of its divisors is an integer number (12424104).

Almost surely, 2^201151140 is an apocalyptic number.

201151140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201151140 is an abundant number, since it is smaller than the sum of its proper divisors (395205852).

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

201151140 is a wasteful number, since it uses less digits than its factorization.

201151140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197236 (or 197234 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 201151140 is about 14182.7761739372. The cubic root of 201151140 is about 585.9233864903.

The spelling of 201151140 in words is "two hundred one million, one hundred fifty-one thousand, one hundred forty".