213112054 has 4 divisors (see below), whose sum is σ = 319668084. Its totient is φ = 106556026.

The previous prime is 213112049. The next prime is 213112061. The reversal of 213112054 is 450211312.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53278012 + ... + 53278015.

It is an arithmetic number, because the mean of its divisors is an integer number (79917021).

Almost surely, 2^213112054 is an apocalyptic number.

213112054 is a deficient number, since it is larger than the sum of its proper divisors (106556030).

213112054 is a wasteful number, since it uses less digits than its factorization.

213112054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106556029.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 213112054 is about 14598.3579213554. The cubic root of 213112054 is about 597.3139692677.

Adding to 213112054 its reverse (450211312), we get a palindrome (663323366).

The spelling of 213112054 in words is "two hundred thirteen million, one hundred twelve thousand, fifty-four".