102102394 has 16 divisors (see below), whose sum is σ = 155164968. Its totient is φ = 50383872.

The previous prime is 102102383. The next prime is 102102419. The reversal of 102102394 is 493201201.

It can be written as a sum of positive squares in 4 ways, for example, as 30107169 + 71995225 = 5487^2 + 8485^2 .

It is a super-3 number, since 3×102102394³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119272 + ... + 120124.

Almost surely, 2^102102394 is an apocalyptic number.

102102394 is a deficient number, since it is larger than the sum of its proper divisors (53062574).

102102394 is an equidigital number, since it uses as much as digits as its factorization.

102102394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 102102394 is about 10104.5729251661. The cubic root of 102102394 is about 467.3891664395.

Adding to 102102394 its reverse (493201201), we get a palindrome (595303595).

The spelling of 102102394 in words is "one hundred two million, one hundred two thousand, three hundred ninety-four".