30148506 has 12 divisors (see below), whose sum is σ = 65321802. Its totient is φ = 10049496.

The previous prime is 30148501. The next prime is 30148507. The reversal of 30148506 is 60584103.

It can be written as a sum of positive squares in only one way, i.e., 29322225 + 826281 = 5415^2 + 909^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30148506.

It is not an unprimeable number, because it can be changed into a prime (30148501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 837441 + ... + 837476.

Almost surely, 2^30148506 is an apocalyptic number.

30148506 is an abundant number, since it is smaller than the sum of its proper divisors (35173296).

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

30148506 is a wasteful number, since it uses less digits than its factorization.

30148506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674925 (or 1674922 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30148506 is about 5490.7655203988. The cubic root of 30148506 is about 311.2351209803.

The spelling of 30148506 in words is "thirty million, one hundred forty-eight thousand, five hundred six".