143072399 has 4 divisors (see below), whose sum is σ = 148005960. Its totient is φ = 138138840.

The previous prime is 143072393. The next prime is 143072401. The reversal of 143072399 is 993270341.

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 143072399 - 2⁴ = 143072383 is a prime.

It is a super-2 number, since 2×143072399² = 40939422711230402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143072393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2466737 + ... + 2466794.

It is an arithmetic number, because the mean of its divisors is an integer number (37001490).

Almost surely, 2^143072399 is an apocalyptic number.

143072399 is a deficient number, since it is larger than the sum of its proper divisors (4933561).

143072399 is an equidigital number, since it uses as much as digits as its factorization.

143072399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933560.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 143072399 is about 11961.2875143105. The cubic root of 143072399 is about 523.0203894867.

The spelling of 143072399 in words is "one hundred forty-three million, seventy-two thousand, three hundred ninety-nine".