30149911 has 8 divisors (see below), whose sum is σ = 33037200. Its totient is φ = 27287040.

The previous prime is 30149863. The next prime is 30149957. The reversal of 30149911 is 11994103.

It is a happy number.

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

It is not a de Polignac number, because 30149911 - 2¹¹ = 30147863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30149911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30149111) 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, 3466 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (4129650).

Almost surely, 2^30149911 is an apocalyptic number.

30149911 is a deficient number, since it is larger than the sum of its proper divisors (2887289).

30149911 is a wasteful number, since it uses less digits than its factorization.

30149911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12209.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 30149911 is about 5490.8934609952. The cubic root of 30149911 is about 311.2399556981.

It can be divided in two parts, 30 and 149911, that added together give a palindrome (149941).

The spelling of 30149911 in words is "thirty million, one hundred forty-nine thousand, nine hundred eleven".