30152405 has 4 divisors (see below), whose sum is σ = 36182892. Its totient is φ = 24121920.

The previous prime is 30152387. The next prime is 30152413. The reversal of 30152405 is 50425103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17825284 + 12327121 = 4222^2 + 3511^2 .

It is not a de Polignac number, because 30152405 - 2¹² = 30148309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3015236 + ... + 3015245.

It is an arithmetic number, because the mean of its divisors is an integer number (9045723).

Almost surely, 2^30152405 is an apocalyptic number.

It is an amenable number.

30152405 is a deficient number, since it is larger than the sum of its proper divisors (6030487).

30152405 is an equidigital number, since it uses as much as digits as its factorization.

30152405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030486.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 30152405 is about 5491.1205595944. The cubic root of 30152405 is about 311.2485373823.

Adding to 30152405 its reverse (50425103), we get a palindrome (80577508).

The spelling of 30152405 in words is "thirty million, one hundred fifty-two thousand, four hundred five".