30141745 has 4 divisors (see below), whose sum is σ = 36170100. Its totient is φ = 24113392.

The previous prime is 30141737. The next prime is 30141751. The reversal of 30141745 is 54714103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54714103 = 43 ⋅1272421.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 15610401 = 3812^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 30141745 - 2³ = 30141737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3014170 + ... + 3014179.

It is an arithmetic number, because the mean of its divisors is an integer number (9042525).

Almost surely, 2^30141745 is an apocalyptic number.

It is an amenable number.

30141745 is a deficient number, since it is larger than the sum of its proper divisors (6028355).

30141745 is an equidigital number, since it uses as much as digits as its factorization.

30141745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028354.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 30141745 is about 5490.1498158065. The cubic root of 30141745 is about 311.2118537359.

Adding to 30141745 its reverse (54714103), we get a palindrome (84855848).

The spelling of 30141745 in words is "thirty million, one hundred forty-one thousand, seven hundred forty-five".