30142501 has 2 divisors, whose sum is σ = 30142502. Its totient is φ = 30142500.

The previous prime is 30142481. The next prime is 30142507. The reversal of 30142501 is 10524103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 2401 = 5490^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142501 - 2¹⁹ = 29618213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30142507) 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 as a sum of consecutive naturals, namely, 15071250 + 15071251.

It is an arithmetic number, because the mean of its divisors is an integer number (15071251).

Almost surely, 2^30142501 is an apocalyptic number.

It is an amenable number.

30142501 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142501 is an equidigital number, since it uses as much as digits as its factorization.

30142501 is an odious number, because the sum of its binary digits is odd.

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

The square root of 30142501 is about 5490.2186659549. The cubic root of 30142501 is about 311.2144556003.

Adding to 30142501 its reverse (10524103), we get a palindrome (40666604).

The spelling of 30142501 in words is "thirty million, one hundred forty-two thousand, five hundred one".