213046623 has 12 divisors (see below), whose sum is σ = 308166768. Its totient is φ = 141831360.

The previous prime is 213046609. The next prime is 213046633. The reversal of 213046623 is 326640312.

213046623 is a `hidden beast` number, since 2 + 1 + 30 + 4 + 6 + 623 = 666.

It is not a de Polignac number, because 213046623 - 2¹² = 213042527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213046633) 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 11 ways as a sum of consecutive naturals, for example, 9738 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (25680564).

Almost surely, 2^213046623 is an apocalyptic number.

213046623 is a deficient number, since it is larger than the sum of its proper divisors (95120145).

213046623 is a wasteful number, since it uses less digits than its factorization.

213046623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33294 (or 33291 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 213046623 is about 14596.1167095909. The cubic root of 213046623 is about 597.2528326495.

Adding to 213046623 its reverse (326640312), we get a palindrome (539686935).

The spelling of 213046623 in words is "two hundred thirteen million, forty-six thousand, six hundred twenty-three".