143193434 has 4 divisors (see below), whose sum is σ = 214790154. Its totient is φ = 71596716.

The previous prime is 143193403. The next prime is 143193493. The reversal of 143193434 is 434391341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434391341 = 4153 ⋅104597.

It can be written as a sum of positive squares in only one way, i.e., 142874209 + 319225 = 11953^2 + 565^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143193434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35798357 + ... + 35798360.

Almost surely, 2^143193434 is an apocalyptic number.

143193434 is a deficient number, since it is larger than the sum of its proper divisors (71596720).

143193434 is an equidigital number, since it uses as much as digits as its factorization.

143193434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71596719.

The product of its digits is 15552, while the sum is 32.

The square root of 143193434 is about 11966.3458917081. The cubic root of 143193434 is about 523.1678344880.

The spelling of 143193434 in words is "one hundred forty-three million, one hundred ninety-three thousand, four hundred thirty-four".