30512152 has 32 divisors (see below), whose sum is σ = 63003600. Its totient is φ = 13737600.

The previous prime is 30512143. The next prime is 30512171. The reversal of 30512152 is 25121503.

It is a super-2 number, since 2×30512152² = 1861982839342208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8002 + ... + 11182.

Almost surely, 2^30512152 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 30512152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31501800).

30512152 is an abundant number, since it is smaller than the sum of its proper divisors (32491448).

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

30512152 is a wasteful number, since it uses less digits than its factorization.

30512152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 30512152 is about 5523.7805894152. The cubic root of 30512152 is about 312.4814777288.

Adding to 30512152 its reverse (25121503), we get a palindrome (55633655).

The spelling of 30512152 in words is "thirty million, five hundred twelve thousand, one hundred fifty-two".