30122545 has 12 divisors (see below), whose sum is σ = 37356660. Its totient is φ = 23316960.

The previous prime is 30122507. The next prime is 30122569. The reversal of 30122545 is 54522103.

It can be written as a sum of positive squares in 2 ways, for example, as 10195249 + 19927296 = 3193^2 + 4464^2 .

It is a de Polignac number, because none of the positive numbers 2^k-30122545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1671 + ... + 7939.

It is an arithmetic number, because the mean of its divisors is an integer number (3113055).

Almost surely, 2^30122545 is an apocalyptic number.

It is an amenable number.

30122545 is a deficient number, since it is larger than the sum of its proper divisors (7234115).

30122545 is an equidigital number, since it uses as much as digits as its factorization.

30122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6305 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30122545 is about 5488.4009510968. The cubic root of 30122545 is about 311.1457600535.

Adding to 30122545 its reverse (54522103), we get a palindrome (84644648).

The spelling of 30122545 in words is "thirty million, one hundred twenty-two thousand, five hundred forty-five".