30141805 has 12 divisors (see below), whose sum is σ = 36969660. Its totient is φ = 23591744.

The previous prime is 30141803. The next prime is 30141821. The reversal of 30141805 is 50814103.

It can be written as a sum of positive squares in 2 ways, for example, as 21650409 + 8491396 = 4653^2 + 2914^2 .

It is not a de Polignac number, because 30141805 - 2¹ = 30141803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30141803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9681 + ... + 12409.

It is an arithmetic number, because the mean of its divisors is an integer number (3080805).

Almost surely, 2^30141805 is an apocalyptic number.

It is an amenable number.

30141805 is a deficient number, since it is larger than the sum of its proper divisors (6827855).

30141805 is an equidigital number, since it uses as much as digits as its factorization.

30141805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828 (or 2781 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 30141805 is about 5490.1552801355. The cubic root of 30141805 is about 311.2120602347.

Adding to 30141805 its reverse (50814103), we get a palindrome (80955908).

The spelling of 30141805 in words is "thirty million, one hundred forty-one thousand, eight hundred five".