30142015 has 4 divisors (see below), whose sum is σ = 36170424. Its totient is φ = 24113608.

The previous prime is 30142009. The next prime is 30142039. The reversal of 30142015 is 51024103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51024103 = 13 ⋅3924931.

It is a cyclic number.

It is not a de Polignac number, because 30142015 - 2⁷ = 30141887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30142015.

It is a congruent number.

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, 3014197 + ... + 3014206.

It is an arithmetic number, because the mean of its divisors is an integer number (9042606).

Almost surely, 2^30142015 is an apocalyptic number.

30142015 is a deficient number, since it is larger than the sum of its proper divisors (6028409).

30142015 is an equidigital number, since it uses as much as digits as its factorization.

30142015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028408.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30142015 is about 5490.1744052443. The cubic root of 30142015 is about 311.2127829782.

Adding to 30142015 its reverse (51024103), we get a palindrome (81166118).

The spelling of 30142015 in words is "thirty million, one hundred forty-two thousand, fifteen".