19145135 has 8 divisors (see below), whose sum is σ = 23715456. Its totient is φ = 14821920.

The previous prime is 19145117. The next prime is 19145149. The reversal of 19145135 is 53154191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19145135 - 2¹⁸ = 18882991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19145098 and 19145107.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 61604 + ... + 61913.

It is an arithmetic number, because the mean of its divisors is an integer number (2964432).

Almost surely, 2^19145135 is an apocalyptic number.

19145135 is a deficient number, since it is larger than the sum of its proper divisors (4570321).

19145135 is a wasteful number, since it uses less digits than its factorization.

19145135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123553.

The product of its digits is 2700, while the sum is 29.

The square root of 19145135 is about 4375.5153982131. The cubic root of 19145135 is about 267.5178780959.

The spelling of 19145135 in words is "nineteen million, one hundred forty-five thousand, one hundred thirty-five".