102424219 has 4 divisors (see below), whose sum is σ = 102789000. Its totient is φ = 102059440.

The previous prime is 102424213. The next prime is 102424229. The reversal of 102424219 is 912424201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912424201 = 13 ⋅70186477.

It is a cyclic number.

It is not a de Polignac number, because 102424219 - 2⁵ = 102424187 is a prime.

It is a super-2 number, since 2×102424219² = 20981441275519922, 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 = 102424193 and 102424202.

It is not an unprimeable number, because it can be changed into a prime (102424213) 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, 181969 + ... + 182530.

It is an arithmetic number, because the mean of its divisors is an integer number (25697250).

Almost surely, 2^102424219 is an apocalyptic number.

102424219 is a deficient number, since it is larger than the sum of its proper divisors (364781).

102424219 is an equidigital number, since it uses as much as digits as its factorization.

102424219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364780.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 102424219 is about 10120.4851168311. The cubic root of 102424219 is about 467.8797189491.

The spelling of 102424219 in words is "one hundred two million, four hundred twenty-four thousand, two hundred nineteen".