30142345 has 4 divisors (see below), whose sum is σ = 36170820. Its totient is φ = 24113872.

The previous prime is 30142313. The next prime is 30142361. The reversal of 30142345 is 54324103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54324103 = 37 ⋅1468219.

It can be written as a sum of positive squares in 2 ways, for example, as 23736384 + 6405961 = 4872^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142345 - 2⁵ = 30142313 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, 3014230 + ... + 3014239.

It is an arithmetic number, because the mean of its divisors is an integer number (9042705).

Almost surely, 2^30142345 is an apocalyptic number.

It is an amenable number.

30142345 is a deficient number, since it is larger than the sum of its proper divisors (6028475).

30142345 is an equidigital number, since it uses as much as digits as its factorization.

30142345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028474.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30142345 is about 5490.2044588521. The cubic root of 30142345 is about 311.2139187112.

Adding to 30142345 its reverse (54324103), we get a palindrome (84466448).

The spelling of 30142345 in words is "thirty million, one hundred forty-two thousand, three hundred forty-five".