102840133 has 8 divisors (see below), whose sum is σ = 114798816. Its totient is φ = 91316400.

The previous prime is 102840121. The next prime is 102840139. The reversal of 102840133 is 331048201.

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 102840133 - 2⁹ = 102839621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102840139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108238 + ... + 109183.

It is an arithmetic number, because the mean of its divisors is an integer number (14349852).

Almost surely, 2^102840133 is an apocalyptic number.

It is an amenable number.

102840133 is a deficient number, since it is larger than the sum of its proper divisors (11958683).

102840133 is a wasteful number, since it uses less digits than its factorization.

102840133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217475.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 102840133 is about 10141.0124248026. The cubic root of 102840133 is about 468.5121700073.

Adding to 102840133 its reverse (331048201), we get a palindrome (433888334).

The spelling of 102840133 in words is "one hundred two million, eight hundred forty thousand, one hundred thirty-three".