143672423407 has 4 divisors (see below), whose sum is σ = 147013642600. Its totient is φ = 140331204216.

The previous prime is 143672423383. The next prime is 143672423417. The reversal of 143672423407 is 704324276341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143672423407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 3341219149 = 143672423407 / (1 + 4 + 3 + 6 + 7 + 2 + 4 + 2 + 3 + 4 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143672423417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670609532 + ... + 1670609617.

It is an arithmetic number, because the mean of its divisors is an integer number (36753410650).

Almost surely, 2^143672423407 is an apocalyptic number.

143672423407 is a deficient number, since it is larger than the sum of its proper divisors (3341219193).

143672423407 is an equidigital number, since it uses as much as digits as its factorization.

143672423407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341219192.

The product of its (nonzero) digits is 677376, while the sum is 43.

Adding to 143672423407 its reverse (704324276341), we get a palindrome (847996699748).

The spelling of 143672423407 in words is "one hundred forty-three billion, six hundred seventy-two million, four hundred twenty-three thousand, four hundred seven".