19103427 has 24 divisors (see below), whose sum is σ = 33392736. Its totient is φ = 10273536.

The previous prime is 19103423. The next prime is 19103477. The reversal of 19103427 is 72430191.

It is not a de Polignac number, because 19103427 - 2² = 19103423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19103427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19103423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7848 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (1391364).

Almost surely, 2^19103427 is an apocalyptic number.

19103427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

19103427 is a deficient number, since it is larger than the sum of its proper divisors (14289309).

19103427 is a wasteful number, since it uses less digits than its factorization.

19103427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867 (or 17864 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 19103427 is about 4370.7467325390. The cubic root of 19103427 is about 267.3234727836.

The spelling of 19103427 in words is "nineteen million, one hundred three thousand, four hundred twenty-seven".