30634145 has 4 divisors (see below), whose sum is σ = 36760980. Its totient is φ = 24507312.

The previous prime is 30634127. The next prime is 30634151. The reversal of 30634145 is 54143603.

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 3936256 + 26697889 = 1984^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 30634145 - 2²⁴ = 13856929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3063410 + ... + 3063419.

It is an arithmetic number, because the mean of its divisors is an integer number (9190245).

Almost surely, 2^30634145 is an apocalyptic number.

It is an amenable number.

30634145 is a deficient number, since it is larger than the sum of its proper divisors (6126835).

30634145 is an equidigital number, since it uses as much as digits as its factorization.

30634145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126834.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30634145 is about 5534.8121015984. The cubic root of 30634145 is about 312.8973760810.

Adding to 30634145 its reverse (54143603), we get a palindrome (84777748).

The spelling of 30634145 in words is "thirty million, six hundred thirty-four thousand, one hundred forty-five".