102194419 has 2 divisors, whose sum is σ = 102194420. Its totient is φ = 102194418.

The previous prime is 102194381. The next prime is 102194423. The reversal of 102194419 is 914491201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102194419 - 2²¹ = 100097267 is a prime.

It is a super-3 number, since 3×102194419³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (102194119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51097209 + 51097210.

It is an arithmetic number, because the mean of its divisors is an integer number (51097210).

Almost surely, 2^102194419 is an apocalyptic number.

102194419 is a deficient number, since it is larger than the sum of its proper divisors (1).

102194419 is an equidigital number, since it uses as much as digits as its factorization.

102194419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 102194419 is about 10109.1255309250. The cubic root of 102194419 is about 467.5295437305.

The spelling of 102194419 in words is "one hundred two million, one hundred ninety-four thousand, four hundred nineteen".