30632145 has 24 divisors (see below), whose sum is σ = 50022336. Its totient is φ = 16006848.

The previous prime is 30632143. The next prime is 30632183. The reversal of 30632145 is 54123603.

It is a happy number.

It is not a de Polignac number, because 30632145 - 2¹ = 30632143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30632143) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 41772 + ... + 42498.

It is an arithmetic number, because the mean of its divisors is an integer number (2084264).

Almost surely, 2^30632145 is an apocalyptic number.

It is an amenable number.

30632145 is a deficient number, since it is larger than the sum of its proper divisors (19390191).

30632145 is an equidigital number, since it uses as much as digits as its factorization.

30632145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30632145 is about 5534.6314240426. The cubic root of 30632145 is about 312.8905665947.

Adding to 30632145 its reverse (54123603), we get a palindrome (84755748).

The spelling of 30632145 in words is "thirty million, six hundred thirty-two thousand, one hundred forty-five".