30771045 has 24 divisors (see below), whose sum is σ = 54093312. Its totient is φ = 16178400.

The previous prime is 30771031. The next prime is 30771047. The reversal of 30771045 is 54017703.

It is not a de Polignac number, because 30771045 - 2⁴ = 30771029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30771047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1621 + ... + 8010.

It is an arithmetic number, because the mean of its divisors is an integer number (2253888).

Almost surely, 2^30771045 is an apocalyptic number.

It is an amenable number.

30771045 is a deficient number, since it is larger than the sum of its proper divisors (23322267).

30771045 is a wasteful number, since it uses less digits than its factorization.

30771045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9713 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 30771045 is about 5547.1654923934. The cubic root of 30771045 is about 313.3627826805.

Adding to 30771045 its reverse (54017703), we get a palindrome (84788748).

The spelling of 30771045 in words is "thirty million, seven hundred seventy-one thousand, forty-five".