213442255429 has 8 divisors (see below), whose sum is σ = 235467254232. Its totient is φ = 192218165760.

The previous prime is 213442255427. The next prime is 213442255471. The reversal of 213442255429 is 924552244312.

It can be written as a sum of positive squares in 4 ways, for example, as 43370145025 + 170072110404 = 208255^2 + 412398^2 .

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 213442255429 - 2¹ = 213442255427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213442255427) 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 in 7 ways as a sum of consecutive naturals, for example, 200226724 + ... + 200227789.

It is an arithmetic number, because the mean of its divisors is an integer number (29433406779).

Almost surely, 2^213442255429 is an apocalyptic number.

It is an amenable number.

213442255429 is a deficient number, since it is larger than the sum of its proper divisors (22024998803).

213442255429 is a wasteful number, since it uses less digits than its factorization.

213442255429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400454567.

The product of its digits is 691200, while the sum is 43.

The spelling of 213442255429 in words is "two hundred thirteen billion, four hundred forty-two million, two hundred fifty-five thousand, four hundred twenty-nine".