19468129 has 4 divisors (see below), whose sum is σ = 19742400. Its totient is φ = 19193860.

The previous prime is 19468117. The next prime is 19468139. The reversal of 19468129 is 92186491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92186491 = 41 ⋅2248451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19468129 is a prime.

It is a super-3 number, since 3×19468129³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19468091 and 19468100.

It is not an unprimeable number, because it can be changed into a prime (19468109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137029 + ... + 137170.

It is an arithmetic number, because the mean of its divisors is an integer number (4935600).

Almost surely, 2^19468129 is an apocalyptic number.

It is an amenable number.

19468129 is a deficient number, since it is larger than the sum of its proper divisors (274271).

19468129 is an equidigital number, since it uses as much as digits as its factorization.

19468129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274270.

The product of its digits is 31104, while the sum is 40.

The square root of 19468129 is about 4412.2702773062. The cubic root of 19468129 is about 269.0139110102.

The spelling of 19468129 in words is "nineteen million, four hundred sixty-eight thousand, one hundred twenty-nine".