19380134 has 4 divisors (see below), whose sum is σ = 29070204. Its totient is φ = 9690066.

The previous prime is 19380131. The next prime is 19380173. The reversal of 19380134 is 43108391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43108391 = 179 ⋅240829.

It is a junction number, because it is equal to n+sod(n) for n = 19380097 and 19380106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19380131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4845032 + ... + 4845035.

It is an arithmetic number, because the mean of its divisors is an integer number (7267551).

Almost surely, 2^19380134 is an apocalyptic number.

19380134 is a deficient number, since it is larger than the sum of its proper divisors (9690070).

19380134 is an equidigital number, since it uses as much as digits as its factorization.

19380134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690069.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 19380134 is about 4402.2873599982. The cubic root of 19380134 is about 268.6079888630.

The spelling of 19380134 in words is "nineteen million, three hundred eighty thousand, one hundred thirty-four".