102788313 has 4 divisors (see below), whose sum is σ = 137051088. Its totient is φ = 68525540.

The previous prime is 102788269. The next prime is 102788317. The reversal of 102788313 is 313887201.

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 102788313 - 2¹³ = 102780121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102788317) 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, 17131383 + ... + 17131388.

It is an arithmetic number, because the mean of its divisors is an integer number (34262772).

Almost surely, 2^102788313 is an apocalyptic number.

It is an amenable number.

102788313 is a deficient number, since it is larger than the sum of its proper divisors (34262775).

102788313 is an equidigital number, since it uses as much as digits as its factorization.

102788313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34262774.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 102788313 is about 10138.4571311418. The cubic root of 102788313 is about 468.4334640944.

The spelling of 102788313 in words is "one hundred two million, seven hundred eighty-eight thousand, three hundred thirteen".