102689213 has 8 divisors (see below), whose sum is σ = 112258656. Its totient is φ = 93158800.

The previous prime is 102689207. The next prime is 102689239. The reversal of 102689213 is 312986201.

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 102689213 - 2⁶ = 102689149 is a prime.

It is a Duffinian number.

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 102689213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102689113) 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, 4106 + ... + 14907.

It is an arithmetic number, because the mean of its divisors is an integer number (14032332).

Almost surely, 2^102689213 is an apocalyptic number.

It is an amenable number.

102689213 is a deficient number, since it is larger than the sum of its proper divisors (9569443).

102689213 is a wasteful number, since it uses less digits than its factorization.

102689213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19515.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 102689213 is about 10133.5686211719. The cubic root of 102689213 is about 468.2828740723.

The spelling of 102689213 in words is "one hundred two million, six hundred eighty-nine thousand, two hundred thirteen".