143400319 has 4 divisors (see below), whose sum is σ = 143474760. Its totient is φ = 143325880.

The previous prime is 143400307. The next prime is 143400347. The reversal of 143400319 is 913004341.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 143400319 - 2¹¹ = 143398271 is a prime.

It is a super-2 number, since 2×143400319² = 41127302978603522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143400293 and 143400302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143400359) 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, 34252 + ... + 38209.

It is an arithmetic number, because the mean of its divisors is an integer number (35868690).

Almost surely, 2^143400319 is an apocalyptic number.

143400319 is a deficient number, since it is larger than the sum of its proper divisors (74441).

143400319 is an equidigital number, since it uses as much as digits as its factorization.

143400319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74440.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 143400319 is about 11974.9872233752. The cubic root of 143400319 is about 523.4196698089.

The spelling of 143400319 in words is "one hundred forty-three million, four hundred thousand, three hundred nineteen".