30117146 has 4 divisors (see below), whose sum is σ = 45175722. Its totient is φ = 15058572.

The previous prime is 30117127. The next prime is 30117169. The reversal of 30117146 is 64171103.

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

It can be written as a sum of positive squares in only one way, i.e., 19456921 + 10660225 = 4411^2 + 3265^2 .

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 as a sum of consecutive naturals, namely, 7529285 + ... + 7529288.

Almost surely, 2^30117146 is an apocalyptic number.

30117146 is a deficient number, since it is larger than the sum of its proper divisors (15058576).

30117146 is a wasteful number, since it uses less digits than its factorization.

30117146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058575.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 30117146 is about 5487.9090735908. The cubic root of 30117146 is about 311.1271695887.

Adding to 30117146 its reverse (64171103), we get a palindrome (94288249).

The spelling of 30117146 in words is "thirty million, one hundred seventeen thousand, one hundred forty-six".