201245680 has 20 divisors (see below), whose sum is σ = 467896392. Its totient is φ = 80498240.

The previous prime is 201245669. The next prime is 201245713. The reversal of 201245680 is 86542102.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257706 + ... + 1257865.

Almost surely, 2^201245680 is an apocalyptic number.

201245680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201245680 is an abundant number, since it is smaller than the sum of its proper divisors (266650712).

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

201245680 is a wasteful number, since it uses less digits than its factorization.

201245680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515584 (or 2515578 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 201245680 is about 14186.1086983006. The cubic root of 201245680 is about 586.0151657713.

Adding to 201245680 its reverse (86542102), we get a palindrome (287787782).

The spelling of 201245680 in words is "two hundred one million, two hundred forty-five thousand, six hundred eighty".