212833507 has 4 divisors (see below), whose sum is σ = 219699136. Its totient is φ = 205967880.

The previous prime is 212833493. The next prime is 212833519. The reversal of 212833507 is 705338212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212833507 - 2¹¹ = 212831459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 6865597 = 212833507 / (2 + 1 + 2 + 8 + 3 + 3 + 5 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212834507) 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, 3432768 + ... + 3432829.

It is an arithmetic number, because the mean of its divisors is an integer number (54924784).

Almost surely, 2^212833507 is an apocalyptic number.

212833507 is a deficient number, since it is larger than the sum of its proper divisors (6865629).

212833507 is an equidigital number, since it uses as much as digits as its factorization.

212833507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865628.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 212833507 is about 14588.8144480626. The cubic root of 212833507 is about 597.0536171001.

The spelling of 212833507 in words is "two hundred twelve million, eight hundred thirty-three thousand, five hundred seven".