143706073 has 6 divisors (see below), whose sum is σ = 167168346. Its totient is φ = 123176592.

The previous prime is 143706067. The next prime is 143706137. The reversal of 143706073 is 370607341.

It can be written as a sum of positive squares in only one way, i.e., 110838784 + 32867289 = 10528^2 + 5733^2 .

It is not a de Polignac number, because 143706073 - 2²¹ = 141608921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143706053) 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 5 ways as a sum of consecutive naturals, for example, 1466340 + ... + 1466437.

It is an arithmetic number, because the mean of its divisors is an integer number (27861391).

Almost surely, 2^143706073 is an apocalyptic number.

It is an amenable number.

143706073 is a deficient number, since it is larger than the sum of its proper divisors (23462273).

143706073 is an equidigital number, since it uses as much as digits as its factorization.

143706073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932791 (or 2932784 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 143706073 is about 11987.7467857809. The cubic root of 143706073 is about 523.7914124727.

The spelling of 143706073 in words is "one hundred forty-three million, seven hundred six thousand, seventy-three".