30750071 has 8 divisors (see below), whose sum is σ = 34452624. Its totient is φ = 27198720.

The previous prime is 30750053. The next prime is 30750073. The reversal of 30750071 is 17005703.

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 30750071 - 2¹⁴ = 30733687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30750073) 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, 37370 + ... + 38183.

It is an arithmetic number, because the mean of its divisors is an integer number (4306578).

Almost surely, 2^30750071 is an apocalyptic number.

30750071 is a deficient number, since it is larger than the sum of its proper divisors (3702553).

30750071 is a wasteful number, since it uses less digits than its factorization.

30750071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75601.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 30750071 is about 5545.2746550554. The cubic root of 30750071 is about 313.2915689267.

Adding to 30750071 its reverse (17005703), we get a palindrome (47755774).

The spelling of 30750071 in words is "thirty million, seven hundred fifty thousand, seventy-one".