30145242 has 8 divisors (see below), whose sum is σ = 60290496. Its totient is φ = 10048412.

The previous prime is 30145231. The next prime is 30145253. The reversal of 30145242 is 24254103.

It is an interprime number because it is at equal distance from previous prime (30145231) and next prime (30145253).

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

30145242 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512098 + ... + 2512109.

It is an arithmetic number, because the mean of its divisors is an integer number (7536312).

Almost surely, 2^30145242 is an apocalyptic number.

30145242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30145242 is a wasteful number, since it uses less digits than its factorization.

30145242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024212.

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

The square root of 30145242 is about 5490.4682860390. The cubic root of 30145242 is about 311.2238887145.

Adding to 30145242 its reverse (24254103), we get a palindrome (54399345).

It can be divided in two parts, 3014 and 5242, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 30145242 in words is "thirty million, one hundred forty-five thousand, two hundred forty-two".