143998079 has 4 divisors (see below), whose sum is σ = 148963560. Its totient is φ = 139032600.

The previous prime is 143998039. The next prime is 143998081. The reversal of 143998079 is 970899341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970899341 = 1223 ⋅793867.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143998079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143998039) 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, 2482697 + ... + 2482754.

It is an arithmetic number, because the mean of its divisors is an integer number (37240890).

Almost surely, 2^143998079 is an apocalyptic number.

143998079 is a deficient number, since it is larger than the sum of its proper divisors (4965481).

143998079 is an equidigital number, since it uses as much as digits as its factorization.

143998079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965480.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 143998079 is about 11999.9199580664. The cubic root of 143998079 is about 524.1459480702.

The spelling of 143998079 in words is "one hundred forty-three million, nine hundred ninety-eight thousand, seventy-nine".