201135580 has 24 divisors (see below), whose sum is σ = 427734720. Its totient is φ = 79435200.

The previous prime is 201135569. The next prime is 201135581. The reversal of 201135580 is 85531102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201135581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62071 + ... + 65230.

It is an arithmetic number, because the mean of its divisors is an integer number (17822280).

Almost surely, 2^201135580 is an apocalyptic number.

201135580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201135580 is an abundant number, since it is smaller than the sum of its proper divisors (226599140).

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

201135580 is a wasteful number, since it uses less digits than its factorization.

201135580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127389 (or 127387 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 201135580 is about 14182.2276106400. The cubic root of 201135580 is about 585.9082781113.

Adding to 201135580 its reverse (85531102), we get a palindrome (286666682).

The spelling of 201135580 in words is "two hundred one million, one hundred thirty-five thousand, five hundred eighty".