143317379 has 8 divisors (see below), whose sum is σ = 144404832. Its totient is φ = 142234560.

The previous prime is 143317357. The next prime is 143317381. The reversal of 143317379 is 973713341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143317379 is a prime.

It is a super-2 number, since 2×143317379² = 41079742246859282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143317579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81449 + ... + 83189.

It is an arithmetic number, because the mean of its divisors is an integer number (18050604).

Almost surely, 2^143317379 is an apocalyptic number.

143317379 is a deficient number, since it is larger than the sum of its proper divisors (1087453).

143317379 is a wasteful number, since it uses less digits than its factorization.

143317379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317.

The product of its digits is 47628, while the sum is 38.

The square root of 143317379 is about 11971.5236707781. The cubic root of 143317379 is about 523.3187383744.

The spelling of 143317379 in words is "one hundred forty-three million, three hundred seventeen thousand, three hundred seventy-nine".