143573945 has 8 divisors (see below), whose sum is σ = 173547144. Its totient is φ = 114020224.

The previous prime is 143573939. The next prime is 143573951. The reversal of 143573945 is 549375341.

143573945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (143573939) and next prime (143573951).

It can be written as a sum of positive squares in 4 ways, for example, as 49716601 + 93857344 = 7051^2 + 9688^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143573945 - 2⁴ = 143573929 is a prime.

It is a super-2 number, since 2×143573945² = 41226955365726050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104114 + ... + 105483.

It is an arithmetic number, because the mean of its divisors is an integer number (21693393).

Almost surely, 2^143573945 is an apocalyptic number.

It is an amenable number.

143573945 is a deficient number, since it is larger than the sum of its proper divisors (29973199).

143573945 is a wasteful number, since it uses less digits than its factorization.

143573945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209739.

The product of its digits is 226800, while the sum is 41.

The square root of 143573945 is about 11982.2345578778. The cubic root of 143573945 is about 523.6308330073.

The spelling of 143573945 in words is "one hundred forty-three million, five hundred seventy-three thousand, nine hundred forty-five".