143542723 has 4 divisors (see below), whose sum is σ = 143664840. Its totient is φ = 143420608.

The previous prime is 143542703. The next prime is 143542787. The reversal of 143542723 is 327245341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327245341 = 19 ⋅17223439.

It is a cyclic number.

It is not a de Polignac number, because 143542723 - 2⁵ = 143542691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143542703) 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, 59278 + ... + 61651.

It is an arithmetic number, because the mean of its divisors is an integer number (35916210).

Almost surely, 2^143542723 is an apocalyptic number.

143542723 is a deficient number, since it is larger than the sum of its proper divisors (122117).

143542723 is a wasteful number, since it uses less digits than its factorization.

143542723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122116.

The product of its digits is 20160, while the sum is 31.

The square root of 143542723 is about 11980.9316415711. The cubic root of 143542723 is about 523.5928735036.

The spelling of 143542723 in words is "one hundred forty-three million, five hundred forty-two thousand, seven hundred twenty-three".