30162542 has 8 divisors (see below), whose sum is σ = 45267600. Its totient is φ = 15073344.

The previous prime is 30162533. The next prime is 30162547. The reversal of 30162542 is 24526103.

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 (30162547) 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, 3959 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (5658450).

Almost surely, 2^30162542 is an apocalyptic number.

30162542 is a deficient number, since it is larger than the sum of its proper divisors (15105058).

30162542 is a wasteful number, since it uses less digits than its factorization.

30162542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30162542 is about 5492.0435176717. The cubic root of 30162542 is about 311.2834132395.

Adding to 30162542 its reverse (24526103), we get a palindrome (54688645).

The spelling of 30162542 in words is "thirty million, one hundred sixty-two thousand, five hundred forty-two".