201980345 has 16 divisors (see below), whose sum is σ = 285938688. Its totient is φ = 134032320.

The previous prime is 201980329. The next prime is 201980347. The reversal of 201980345 is 543089102.

It is not a de Polignac number, because 201980345 - 2⁴ = 201980329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201980347) 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, 91994 + ... + 94163.

It is an arithmetic number, because the mean of its divisors is an integer number (17871168).

Almost surely, 2^201980345 is an apocalyptic number.

It is an amenable number.

201980345 is a deficient number, since it is larger than the sum of its proper divisors (83958343).

201980345 is a wasteful number, since it uses less digits than its factorization.

201980345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186200.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 201980345 is about 14211.9789262439. The cubic root of 201980345 is about 586.7273996971.

The spelling of 201980345 in words is "two hundred one million, nine hundred eighty thousand, three hundred forty-five".