211252413 has 4 divisors (see below), whose sum is σ = 281669888. Its totient is φ = 140834940.

The previous prime is 211252373. The next prime is 211252429. The reversal of 211252413 is 314252112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211252413 - 2²⁰ = 210203837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 211252413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211252453) 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, 35208733 + ... + 35208738.

It is an arithmetic number, because the mean of its divisors is an integer number (70417472).

Almost surely, 2^211252413 is an apocalyptic number.

It is an amenable number.

211252413 is a deficient number, since it is larger than the sum of its proper divisors (70417475).

211252413 is an equidigital number, since it uses as much as digits as its factorization.

211252413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70417474.

The product of its digits is 480, while the sum is 21.

The square root of 211252413 is about 14534.5248632351. The cubic root of 211252413 is about 595.5714802164.

The spelling of 211252413 in words is "two hundred eleven million, two hundred fifty-two thousand, four hundred thirteen".