30142425 has 24 divisors (see below), whose sum is σ = 50782464. Its totient is φ = 15770560.

The previous prime is 30142423. The next prime is 30142433. The reversal of 30142425 is 52424103.

It is not a de Polignac number, because 30142425 - 2¹ = 30142423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30142423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184 + ... + 7766.

It is an arithmetic number, because the mean of its divisors is an integer number (2115936).

Almost surely, 2^30142425 is an apocalyptic number.

It is an amenable number.

30142425 is a deficient number, since it is larger than the sum of its proper divisors (20640039).

30142425 is a wasteful number, since it uses less digits than its factorization.

30142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7649 (or 7644 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30142425 is about 5490.2117445505. The cubic root of 30142425 is about 311.2141940392.

Adding to 30142425 its reverse (52424103), we get a palindrome (82566528).

The spelling of 30142425 in words is "thirty million, one hundred forty-two thousand, four hundred twenty-five".