201262643 has 4 divisors (see below), whose sum is σ = 213101640. Its totient is φ = 189423648.

The previous prime is 201262637. The next prime is 201262651. The reversal of 201262643 is 346262102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201262643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201262603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5919473 + ... + 5919506.

It is an arithmetic number, because the mean of its divisors is an integer number (53275410).

Almost surely, 2^201262643 is an apocalyptic number.

201262643 is a deficient number, since it is larger than the sum of its proper divisors (11838997).

201262643 is a wasteful number, since it uses less digits than its factorization.

201262643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11838996.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 201262643 is about 14186.7065593111. The cubic root of 201262643 is about 586.0316303831.

The spelling of 201262643 in words is "two hundred one million, two hundred sixty-two thousand, six hundred forty-three".