30100142 has 8 divisors (see below), whose sum is σ = 47526600. Its totient is φ = 14257944.

The previous prime is 30100141. The next prime is 30100151. The reversal of 30100142 is 24100103.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396017 + ... + 396092.

It is an arithmetic number, because the mean of its divisors is an integer number (5940825).

Almost surely, 2^30100142 is an apocalyptic number.

30100142 is a deficient number, since it is larger than the sum of its proper divisors (17426458).

30100142 is a wasteful number, since it uses less digits than its factorization.

30100142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792130.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30100142 is about 5486.3596309393. The cubic root of 30100142 is about 311.0686049165.

Adding to 30100142 its reverse (24100103), we get a palindrome (54200245).

The spelling of 30100142 in words is "thirty million, one hundred thousand, one hundred forty-two".