30546142 has 8 divisors (see below), whose sum is σ = 49984632. Its totient is φ = 13884600.

The previous prime is 30546133. The next prime is 30546143. The reversal of 30546142 is 24164503.

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 (30546143) 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 3 ways as a sum of consecutive naturals, for example, 694209 + ... + 694252.

It is an arithmetic number, because the mean of its divisors is an integer number (6248079).

Almost surely, 2^30546142 is an apocalyptic number.

30546142 is a deficient number, since it is larger than the sum of its proper divisors (19438490).

30546142 is a wasteful number, since it uses less digits than its factorization.

30546142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388474.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30546142 is about 5526.8564301961. The cubic root of 30546142 is about 312.5974676237.

It can be divided in two parts, 305461 and 42, that added together give a palindrome (305503).

The spelling of 30546142 in words is "thirty million, five hundred forty-six thousand, one hundred forty-two".