213113486 has 4 divisors (see below), whose sum is σ = 319670232. Its totient is φ = 106556742.

The previous prime is 213113473. The next prime is 213113497. The reversal of 213113486 is 684311312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53278370 + ... + 53278373.

It is an arithmetic number, because the mean of its divisors is an integer number (79917558).

Almost surely, 2^213113486 is an apocalyptic number.

213113486 is a deficient number, since it is larger than the sum of its proper divisors (106556746).

213113486 is a wasteful number, since it uses less digits than its factorization.

213113486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106556745.

The product of its digits is 3456, while the sum is 29.

The square root of 213113486 is about 14598.4069678852. The cubic root of 213113486 is about 597.3153071424.

Adding to 213113486 its reverse (684311312), we get a palindrome (897424798).

The spelling of 213113486 in words is "two hundred thirteen million, one hundred thirteen thousand, four hundred eighty-six".