213102502 has 8 divisors (see below), whose sum is σ = 327450312. Its totient is φ = 103952400.

The previous prime is 213102493. The next prime is 213102509. The reversal of 213102502 is 205201312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213102509) 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 3 ways as a sum of consecutive naturals, for example, 1299324 + ... + 1299487.

It is an arithmetic number, because the mean of its divisors is an integer number (40931289).

Almost surely, 2^213102502 is an apocalyptic number.

213102502 is a deficient number, since it is larger than the sum of its proper divisors (114347810).

213102502 is a wasteful number, since it uses less digits than its factorization.

213102502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598854.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 213102502 is about 14598.0307576056. The cubic root of 213102502 is about 597.3050449668.

Adding to 213102502 its reverse (205201312), we get a palindrome (418303814).

The spelling of 213102502 in words is "two hundred thirteen million, one hundred two thousand, five hundred two".