102694289 has 4 divisors (see below), whose sum is σ = 106007040. Its totient is φ = 99381540.

The previous prime is 102694271. The next prime is 102694321. The reversal of 102694289 is 982496201.

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 a de Polignac number, because none of the positive numbers 2^k-102694289 is a prime.

It is a super-2 number, since 2×102694289² = 21092233986431042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102694589) 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, 1656329 + ... + 1656390.

It is an arithmetic number, because the mean of its divisors is an integer number (26501760).

Almost surely, 2^102694289 is an apocalyptic number.

It is an amenable number.

102694289 is a deficient number, since it is larger than the sum of its proper divisors (3312751).

102694289 is an equidigital number, since it uses as much as digits as its factorization.

102694289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312750.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 102694289 is about 10133.8190727879. The cubic root of 102694289 is about 468.2905897958.

The spelling of 102694289 in words is "one hundred two million, six hundred ninety-four thousand, two hundred eighty-nine".