143313397 has 2 divisors, whose sum is σ = 143313398. Its totient is φ = 143313396.

The previous prime is 143313377. The next prime is 143313413. The reversal of 143313397 is 793313341.

143313397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107205316 + 36108081 = 10354^2 + 6009^2 .

It is an emirp because it is prime and its reverse (793313341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143313397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143313377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71656698 + 71656699.

It is an arithmetic number, because the mean of its divisors is an integer number (71656699).

Almost surely, 2^143313397 is an apocalyptic number.

It is an amenable number.

143313397 is a deficient number, since it is larger than the sum of its proper divisors (1).

143313397 is an equidigital number, since it uses as much as digits as its factorization.

143313397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 34.

The square root of 143313397 is about 11971.3573582948. The cubic root of 143313397 is about 523.3138916151.

The spelling of 143313397 in words is "one hundred forty-three million, three hundred thirteen thousand, three hundred ninety-seven".