30663149 has 4 divisors (see below), whose sum is σ = 33450720. Its totient is φ = 27875580.

The previous prime is 30663137. The next prime is 30663151. The reversal of 30663149 is 94136603.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30663149 - 2¹² = 30659053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30663109) 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, 1393769 + ... + 1393790.

It is an arithmetic number, because the mean of its divisors is an integer number (8362680).

Almost surely, 2^30663149 is an apocalyptic number.

It is an amenable number.

30663149 is a deficient number, since it is larger than the sum of its proper divisors (2787571).

30663149 is a wasteful number, since it uses less digits than its factorization.

30663149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787570.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30663149 is about 5537.4316248600. The cubic root of 30663149 is about 312.9960939538.

The spelling of 30663149 in words is "thirty million, six hundred sixty-three thousand, one hundred forty-nine".