213052737 has 4 divisors (see below), whose sum is σ = 284070320. Its totient is φ = 142035156.

The previous prime is 213052711. The next prime is 213052793. The reversal of 213052737 is 737250312.

213052737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213052737 - 2¹⁴ = 213036353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213052337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35508787 + ... + 35508792.

It is an arithmetic number, because the mean of its divisors is an integer number (71017580).

Almost surely, 2^213052737 is an apocalyptic number.

It is an amenable number.

213052737 is a deficient number, since it is larger than the sum of its proper divisors (71017583).

213052737 is an equidigital number, since it uses as much as digits as its factorization.

213052737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71017582.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 213052737 is about 14596.3261473564. The cubic root of 213052737 is about 597.2585459042.

It can be divided in two parts, 21305 and 2737, that added together give a palindrome (24042).

The spelling of 213052737 in words is "two hundred thirteen million, fifty-two thousand, seven hundred thirty-seven".