19142685 has 12 divisors (see below), whose sum is σ = 33180732. Its totient is φ = 10209408.

The previous prime is 19142603. The next prime is 19142701. The reversal of 19142685 is 58624191.

It can be written as a sum of positive squares in 2 ways, for example, as 14907321 + 4235364 = 3861^2 + 2058^2 .

It is not a de Polignac number, because 19142685 - 2¹² = 19138589 is a prime.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212652 + ... + 212741.

It is an arithmetic number, because the mean of its divisors is an integer number (2765061).

Almost surely, 2^19142685 is an apocalyptic number.

19142685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19142685 is a deficient number, since it is larger than the sum of its proper divisors (14038047).

19142685 is a wasteful number, since it uses less digits than its factorization.

19142685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425404 (or 425401 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 19142685 is about 4375.2354222373. The cubic root of 19142685 is about 267.5064662017.

The spelling of 19142685 in words is "nineteen million, one hundred forty-two thousand, six hundred eighty-five".