143742369 has 4 divisors (see below), whose sum is σ = 191656496. Its totient is φ = 95828244.

The previous prime is 143742367. The next prime is 143742397. The reversal of 143742369 is 963247341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 143742369 - 2¹ = 143742367 is a prime.

It is a super-2 number, since 2×143742369² = 41323737291464322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143742367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23957059 + ... + 23957064.

It is an arithmetic number, because the mean of its divisors is an integer number (47914124).

Almost surely, 2^143742369 is an apocalyptic number.

It is an amenable number.

143742369 is a deficient number, since it is larger than the sum of its proper divisors (47914127).

143742369 is an equidigital number, since it uses as much as digits as its factorization.

143742369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47914126.

The product of its digits is 108864, while the sum is 39.

The square root of 143742369 is about 11989.2605693596. The cubic root of 143742369 is about 523.8355069505.

The spelling of 143742369 in words is "one hundred forty-three million, seven hundred forty-two thousand, three hundred sixty-nine".