30547152 has 80 divisors (see below), whose sum is σ = 90549760. Its totient is φ = 9849600.

The previous prime is 30547093. The next prime is 30547159. The reversal of 30547152 is 25174503.

It is a happy number.

It is a super-2 number, since 2×30547152² = 1866256990622208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30547159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12252 + ... + 14532.

It is an arithmetic number, because the mean of its divisors is an integer number (1131872).

Almost surely, 2^30547152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30547152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45274880).

30547152 is an abundant number, since it is smaller than the sum of its proper divisors (60002608).

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

30547152 is a wasteful number, since it uses less digits than its factorization.

30547152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 30547152 is about 5526.9478014543. The cubic root of 30547152 is about 312.6009129029.

The spelling of 30547152 in words is "thirty million, five hundred forty-seven thousand, one hundred fifty-two".