102801813 has 4 divisors (see below), whose sum is σ = 137069088. Its totient is φ = 68534540.

The previous prime is 102801793. The next prime is 102801827. The reversal of 102801813 is 318108201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102801813 - 2⁶ = 102801749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102801833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17133633 + ... + 17133638.

It is an arithmetic number, because the mean of its divisors is an integer number (34267272).

Almost surely, 2^102801813 is an apocalyptic number.

It is an amenable number.

102801813 is a deficient number, since it is larger than the sum of its proper divisors (34267275).

102801813 is an equidigital number, since it uses as much as digits as its factorization.

102801813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34267274.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 102801813 is about 10139.1228910592. The cubic root of 102801813 is about 468.4539708840.

The spelling of 102801813 in words is "one hundred two million, eight hundred one thousand, eight hundred thirteen".