30973133 has 8 divisors (see below), whose sum is σ = 32970240. Its totient is φ = 28995520.

The previous prime is 30973121. The next prime is 30973169. The reversal of 30973133 is 33137903.

It is a happy number.

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 30973133 - 2¹⁸ = 30710989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30973096 and 30973105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30976133) 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, 1523 + ... + 8016.

It is an arithmetic number, because the mean of its divisors is an integer number (4121280).

Almost surely, 2^30973133 is an apocalyptic number.

It is an amenable number.

30973133 is a deficient number, since it is larger than the sum of its proper divisors (1997107).

30973133 is a wasteful number, since it uses less digits than its factorization.

30973133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747.

The product of its (nonzero) digits is 5103, while the sum is 29.

The square root of 30973133 is about 5565.3511120144. The cubic root of 30973133 is about 314.0472868863.

The spelling of 30973133 in words is "thirty million, nine hundred seventy-three thousand, one hundred thirty-three".