102192019 has 4 divisors (see below), whose sum is σ = 103867360. Its totient is φ = 100516680.

The previous prime is 102192017. The next prime is 102192023. The reversal of 102192019 is 910291201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910291201 = 5689 ⋅160009.

It is a cyclic number.

It is not a de Polignac number, because 102192019 - 2¹ = 102192017 is a prime.

It is a super-2 number, since 2×102192019² = 20886417494592722, 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 = 102191984 and 102192002.

It is not an unprimeable number, because it can be changed into a prime (102192017) 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, 837579 + ... + 837700.

It is an arithmetic number, because the mean of its divisors is an integer number (25966840).

Almost surely, 2^102192019 is an apocalyptic number.

102192019 is a deficient number, since it is larger than the sum of its proper divisors (1675341).

102192019 is an equidigital number, since it uses as much as digits as its factorization.

102192019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675340.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 102192019 is about 10109.0068255986. The cubic root of 102192019 is about 467.5258837795.

The spelling of 102192019 in words is "one hundred two million, one hundred ninety-two thousand, nineteen".