201216379 has 12 divisors (see below), whose sum is σ = 247817584. Its totient is φ = 159097104.

The previous prime is 201216377. The next prime is 201216383. The reversal of 201216379 is 973612102.

It is not a de Polignac number, because 201216379 - 2¹ = 201216377 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 201216379.

It is not an unprimeable number, because it can be changed into a prime (201216377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134574 + ... + 136060.

Almost surely, 2^201216379 is an apocalyptic number.

201216379 is a deficient number, since it is larger than the sum of its proper divisors (46601205).

201216379 is an frugal number, since it uses more digits than its factorization.

201216379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 201216379 is about 14185.0759250700. The cubic root of 201216379 is about 585.9867234817.

The spelling of 201216379 in words is "two hundred one million, two hundred sixteen thousand, three hundred seventy-nine".