19145029 has 4 divisors (see below), whose sum is σ = 19375776. Its totient is φ = 18914284.

The previous prime is 19145023. The next prime is 19145041. The reversal of 19145029 is 92054191.

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.

It is a cyclic number.

It is not a de Polignac number, because 19145029 - 2⁵ = 19144997 is a prime.

It is a Smith number, since the sum of its digits (31) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (19145023) 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, 115249 + ... + 115414.

It is an arithmetic number, because the mean of its divisors is an integer number (4843944).

Almost surely, 2^19145029 is an apocalyptic number.

It is an amenable number.

19145029 is a deficient number, since it is larger than the sum of its proper divisors (230747).

19145029 is an equidigital number, since it uses as much as digits as its factorization.

19145029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230746.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 19145029 is about 4375.5032853376. The cubic root of 19145029 is about 267.5173843769.

The spelling of 19145029 in words is "nineteen million, one hundred forty-five thousand, twenty-nine".