30641146 has 8 divisors (see below), whose sum is σ = 46297620. Its totient is φ = 15208608.

The previous prime is 30641137. The next prime is 30641147. The reversal of 30641146 is 64114603.

It can be written as a sum of positive squares in 2 ways, for example, as 29106025 + 1535121 = 5395^2 + 1239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30641146.

It is not an unprimeable number, because it can be changed into a prime (30641147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55641 + ... + 56188.

Almost surely, 2^30641146 is an apocalyptic number.

30641146 is a deficient number, since it is larger than the sum of its proper divisors (15656474).

30641146 is a wasteful number, since it uses less digits than its factorization.

30641146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111968.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30641146 is about 5535.4445169291. Note that the first 3 decimals coincide. The cubic root of 30641146 is about 312.9212103535.

Adding to 30641146 its reverse (64114603), we get a palindrome (94755749).

The spelling of 30641146 in words is "thirty million, six hundred forty-one thousand, one hundred forty-six".