42143193 has 8 divisors (see below), whose sum is σ = 62434400. Its totient is φ = 28095444.

The previous prime is 42143183. The next prime is 42143207. The reversal of 42143193 is 39134124.

It is not a de Polignac number, because 42143193 - 2⁸ = 42142937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1560859 = 42143193 / (4 + 2 + 1 + 4 + 3 + 1 + 9 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42143183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780403 + ... + 780456.

It is an arithmetic number, because the mean of its divisors is an integer number (7804300).

Almost surely, 2^42143193 is an apocalyptic number.

It is an amenable number.

42143193 is a deficient number, since it is larger than the sum of its proper divisors (20291207).

42143193 is a wasteful number, since it uses less digits than its factorization.

42143193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560868 (or 1560862 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 42143193 is about 6491.7788779348. The cubic root of 42143193 is about 347.9972502755.

It can be divided in two parts, 42 and 143193, that multiplied together give a palindrome (6014106).

The spelling of 42143193 in words is "forty-two million, one hundred forty-three thousand, one hundred ninety-three".