213040054 has 4 divisors (see below), whose sum is σ = 319560084. Its totient is φ = 106520026.

The previous prime is 213040031. The next prime is 213040057. The reversal of 213040054 is 450040312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213040057) 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 as a sum of consecutive naturals, namely, 53260012 + ... + 53260015.

It is an arithmetic number, because the mean of its divisors is an integer number (79890021).

Almost surely, 2^213040054 is an apocalyptic number.

213040054 is a deficient number, since it is larger than the sum of its proper divisors (106520030).

213040054 is a wasteful number, since it uses less digits than its factorization.

213040054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106520029.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 213040054 is about 14595.8916822509. The cubic root of 213040054 is about 597.2466940962.

Adding to 213040054 its reverse (450040312), we get a palindrome (663080366).

The spelling of 213040054 in words is "two hundred thirteen million, forty thousand, fifty-four".