213332737 has 8 divisors (see below), whose sum is σ = 214928640. Its totient is φ = 211741680.

The previous prime is 213332719. The next prime is 213332747. The reversal of 213332737 is 737233312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213332737 is a prime.

It is a super-2 number, since 2×213332737² = 91021713351822338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213332699 and 213332708.

It is not an unprimeable number, because it can be changed into a prime (213332747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153787 + ... + 155167.

It is an arithmetic number, because the mean of its divisors is an integer number (26866080).

Almost surely, 2^213332737 is an apocalyptic number.

It is an amenable number.

213332737 is a deficient number, since it is larger than the sum of its proper divisors (1595903).

213332737 is a wasteful number, since it uses less digits than its factorization.

213332737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its digits is 15876, while the sum is 31.

The square root of 213332737 is about 14605.9144527140. The cubic root of 213332737 is about 597.5200761215.

The spelling of 213332737 in words is "two hundred thirteen million, three hundred thirty-two thousand, seven hundred thirty-seven".