213402055 has 8 divisors (see below), whose sum is σ = 256484592. Its totient is φ = 170453568.

The previous prime is 213402041. The next prime is 213402103. The reversal of 213402055 is 550204312.

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

It is a cyclic number.

It is not a de Polignac number, because 213402055 - 2⁷ = 213401927 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 29974 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (32060574).

Almost surely, 2^213402055 is an apocalyptic number.

213402055 is a deficient number, since it is larger than the sum of its proper divisors (43082537).

213402055 is an equidigital number, since it uses as much as digits as its factorization.

213402055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67025.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 213402055 is about 14608.2872028174. The cubic root of 213402055 is about 597.5847863201.

Adding to 213402055 its reverse (550204312), we get a palindrome (763606367).

The spelling of 213402055 in words is "two hundred thirteen million, four hundred two thousand, fifty-five".