201651213 has 8 divisors (see below), whose sum is σ = 272272000. Its totient is φ = 132732288.

The previous prime is 201651193. The next prime is 201651227. The reversal of 201651213 is 312156102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201651213 - 2¹⁷ = 201520141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201651213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201651283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425188 + ... + 425661.

It is an arithmetic number, because the mean of its divisors is an integer number (34034000).

Almost surely, 2^201651213 is an apocalyptic number.

It is an amenable number.

201651213 is a deficient number, since it is larger than the sum of its proper divisors (70620787).

201651213 is an equidigital number, since it uses as much as digits as its factorization.

201651213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850931.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 201651213 is about 14200.3948184549. The cubic root of 201651213 is about 586.4085307984.

The spelling of 201651213 in words is "two hundred one million, six hundred fifty-one thousand, two hundred thirteen".