30142513 has 8 divisors (see below), whose sum is σ = 33016680. Its totient is φ = 27390720.

The previous prime is 30142507. The next prime is 30142543. The reversal of 30142513 is 31524103.

It can be written as a sum of positive squares in 4 ways, for example, as 16834609 + 13307904 = 4103^2 + 3648^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30142513 - 2⁵ = 30142481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30142543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30078 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (4127085).

Almost surely, 2^30142513 is an apocalyptic number.

It is an amenable number.

30142513 is a deficient number, since it is larger than the sum of its proper divisors (2874167).

30142513 is a wasteful number, since it uses less digits than its factorization.

30142513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61187.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30142513 is about 5490.2197588075. The cubic root of 30142513 is about 311.2144968994.

Adding to 30142513 its reverse (31524103), we get a palindrome (61666616).

The spelling of 30142513 in words is "thirty million, one hundred forty-two thousand, five hundred thirteen".