102026813 has 8 divisors (see below), whose sum is σ = 117301632. Its totient is φ = 86926896.

The previous prime is 102026803. The next prime is 102026839. The reversal of 102026813 is 318620201.

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

It is not a de Polignac number, because 102026813 - 2¹² = 102022717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102026803) 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, 42470 + ... + 44807.

It is an arithmetic number, because the mean of its divisors is an integer number (14662704).

Almost surely, 2^102026813 is an apocalyptic number.

It is an amenable number.

102026813 is a deficient number, since it is larger than the sum of its proper divisors (15274819).

102026813 is an equidigital number, since it uses as much as digits as its factorization.

102026813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87451.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102026813 is about 10100.8322924401. The cubic root of 102026813 is about 467.2738101474.

The spelling of 102026813 in words is "one hundred two million, twenty-six thousand, eight hundred thirteen".