212042554 has 8 divisors (see below), whose sum is σ = 320352480. Its totient is φ = 105258396.

The previous prime is 212042477. The next prime is 212042569. The reversal of 212042554 is 455240212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381094 + ... + 381649.

It is an arithmetic number, because the mean of its divisors is an integer number (40044060).

Almost surely, 2^212042554 is an apocalyptic number.

212042554 is a deficient number, since it is larger than the sum of its proper divisors (108309926).

212042554 is a wasteful number, since it uses less digits than its factorization.

212042554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762884.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 212042554 is about 14561.6810155971. The cubic root of 212042554 is about 596.3130890323.

Adding to 212042554 its reverse (455240212), we get a palindrome (667282766).

The spelling of 212042554 in words is "two hundred twelve million, forty-two thousand, five hundred fifty-four".