213102398 has 4 divisors (see below), whose sum is σ = 319653600. Its totient is φ = 106551198.

The previous prime is 213102397. The next prime is 213102413. The reversal of 213102398 is 893201312.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213102398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213102391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53275598 + ... + 53275601.

It is an arithmetic number, because the mean of its divisors is an integer number (79913400).

Almost surely, 2^213102398 is an apocalyptic number.

213102398 is a deficient number, since it is larger than the sum of its proper divisors (106551202).

213102398 is a wasteful number, since it uses less digits than its factorization.

213102398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106551201.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 213102398 is about 14598.0271954809. The cubic root of 213102398 is about 597.3049477996.

The spelling of 213102398 in words is "two hundred thirteen million, one hundred two thousand, three hundred ninety-eight".