30711164 has 24 divisors (see below), whose sum is σ = 61181568. Its totient is φ = 13352240.

The previous prime is 30711143. The next prime is 30711167. The reversal of 30711164 is 46111703.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30711167) 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, 14162 + ... + 16185.

It is an arithmetic number, because the mean of its divisors is an integer number (2549232).

Almost surely, 2^30711164 is an apocalyptic number.

It is an amenable number.

30711164 is a deficient number, since it is larger than the sum of its proper divisors (30470404).

30711164 is a wasteful number, since it uses less digits than its factorization.

30711164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30385 (or 30383 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 30711164 is about 5541.7654226789. The cubic root of 30711164 is about 313.1593808356.

Adding to 30711164 its reverse (46111703), we get a palindrome (76822867).

The spelling of 30711164 in words is "thirty million, seven hundred eleven thousand, one hundred sixty-four".