30973143 has 8 divisors (see below), whose sum is σ = 41346688. Its totient is φ = 20624184.

The previous prime is 30973121. The next prime is 30973169. The reversal of 30973143 is 34137903.

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

It is not a de Polignac number, because 30973143 - 2¹² = 30969047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30973143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30973043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971 + ... + 8412.

It is an arithmetic number, because the mean of its divisors is an integer number (5168336).

Almost surely, 2^30973143 is an apocalyptic number.

30973143 is a deficient number, since it is larger than the sum of its proper divisors (10373545).

30973143 is a wasteful number, since it uses less digits than its factorization.

30973143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30973143 is about 5565.3520104302. The cubic root of 30973143 is about 314.0473206841.

The spelling of 30973143 in words is "thirty million, nine hundred seventy-three thousand, one hundred forty-three".