201640083 has 4 divisors (see below), whose sum is σ = 268853448. Its totient is φ = 134426720.

The previous prime is 201640079. The next prime is 201640123. The reversal of 201640083 is 380046102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201640083 - 2² = 201640079 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201640003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33606678 + ... + 33606683.

It is an arithmetic number, because the mean of its divisors is an integer number (67213362).

Almost surely, 2^201640083 is an apocalyptic number.

201640083 is a deficient number, since it is larger than the sum of its proper divisors (67213365).

201640083 is an equidigital number, since it uses as much as digits as its factorization.

201640083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67213364.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 201640083 is about 14200.0029225349. The cubic root of 201640083 is about 586.3977417948.

Adding to 201640083 its reverse (380046102), we get a palindrome (581686185).

The spelling of 201640083 in words is "two hundred one million, six hundred forty thousand, eighty-three".