143740979 has 2 divisors, whose sum is σ = 143740980. Its totient is φ = 143740978.

The previous prime is 143740951. The next prime is 143740981. The reversal of 143740979 is 979047341.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (979047341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143740979 - 2²⁴ = 126963763 is a prime.

It is a super-2 number, since 2×143740979² = 41322938087756882, which contains 22 as substring.

Together with 143740981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143740999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71870489 + 71870490.

It is an arithmetic number, because the mean of its divisors is an integer number (71870490).

Almost surely, 2^143740979 is an apocalyptic number.

143740979 is a deficient number, since it is larger than the sum of its proper divisors (1).

143740979 is an equidigital number, since it uses as much as digits as its factorization.

143740979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 143740979 is about 11989.2026006737. The cubic root of 143740979 is about 523.8338184349.

It can be divided in two parts, 1437409 and 79, that multiplied together give a palindrome (113555311).

The spelling of 143740979 in words is "one hundred forty-three million, seven hundred forty thousand, nine hundred seventy-nine".