143191742 has 8 divisors (see below), whose sum is σ = 215049816. Its totient is φ = 71508472.

The previous prime is 143191729. The next prime is 143191819. The reversal of 143191742 is 247191341.

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

It is a junction number, because it is equal to n+sod(n) for n = 143191699 and 143191708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41633 + ... + 44940.

It is an arithmetic number, because the mean of its divisors is an integer number (26881227).

Almost surely, 2^143191742 is an apocalyptic number.

143191742 is a deficient number, since it is larger than the sum of its proper divisors (71858074).

143191742 is an equidigital number, since it uses as much as digits as its factorization.

143191742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87402.

The product of its digits is 6048, while the sum is 32.

The square root of 143191742 is about 11966.2751932253. The cubic root of 143191742 is about 523.1657738641.

It can be divided in two parts, 14319 and 1742, that added together give a palindrome (16061).

The spelling of 143191742 in words is "one hundred forty-three million, one hundred ninety-one thousand, seven hundred forty-two".