213242037 has 8 divisors (see below), whose sum is σ = 284966304. Its totient is φ = 141839568.

The previous prime is 213242027. The next prime is 213242077. The reversal of 213242037 is 730242312.

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

It is not a de Polignac number, because 213242037 - 2⁸ = 213241781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213241998 and 213242016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213242027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78898 + ... + 81555.

It is an arithmetic number, because the mean of its divisors is an integer number (35620788).

Almost surely, 2^213242037 is an apocalyptic number.

It is an amenable number.

213242037 is a deficient number, since it is larger than the sum of its proper divisors (71724267).

213242037 is a wasteful number, since it uses less digits than its factorization.

213242037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160899.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 213242037 is about 14602.8092160379. The cubic root of 213242037 is about 597.4353840829.

Adding to 213242037 its reverse (730242312), we get a palindrome (943484349).

The spelling of 213242037 in words is "two hundred thirteen million, two hundred forty-two thousand, thirty-seven".