30118949 has 8 divisors (see below), whose sum is σ = 35532288. Its totient is φ = 24983280.

The previous prime is 30118931. The next prime is 30118961. The reversal of 30118949 is 94981103.

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

It is not a de Polignac number, because 30118949 - 2¹² = 30114853 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 (30118909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69182 + ... + 69615.

It is an arithmetic number, because the mean of its divisors is an integer number (4441536).

Almost surely, 2^30118949 is an apocalyptic number.

It is an amenable number.

30118949 is a deficient number, since it is larger than the sum of its proper divisors (5413339).

30118949 is a wasteful number, since it uses less digits than its factorization.

30118949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138835.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 30118949 is about 5488.0733413467. The cubic root of 30118949 is about 311.1333781351.

The spelling of 30118949 in words is "thirty million, one hundred eighteen thousand, nine hundred forty-nine".