102109419 has 6 divisors (see below), whose sum is σ = 147491396. Its totient is φ = 68072940.

The previous prime is 102109417. The next prime is 102109421. The reversal of 102109419 is 914901201.

It is an interprime number because it is at equal distance from previous prime (102109417) and next prime (102109421).

It is not a de Polignac number, because 102109419 - 2¹ = 102109417 is a prime.

It is a super-2 number, since 2×102109419² = 20852666897035122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102109392 and 102109401.

It is not an unprimeable number, because it can be changed into a prime (102109417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5672737 + ... + 5672754.

Almost surely, 2^102109419 is an apocalyptic number.

102109419 is a deficient number, since it is larger than the sum of its proper divisors (45381977).

102109419 is a wasteful number, since it uses less digits than its factorization.

102109419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345497 (or 11345494 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 102109419 is about 10104.9205340765. The cubic root of 102109419 is about 467.3998855274.

The spelling of 102109419 in words is "one hundred two million, one hundred nine thousand, four hundred nineteen".