30114721 has 32 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 22800960.

The previous prime is 30114713. The next prime is 30114727. The reversal of 30114721 is 12741103.

It is not a de Polignac number, because 30114721 - 2³ = 30114713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30114727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381160 + ... + 381238.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^30114721 is an apocalyptic number.

It is an amenable number.

30114721 is a deficient number, since it is larger than the sum of its proper divisors (8592479).

30114721 is a wasteful number, since it uses less digits than its factorization.

30114721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 30114721 is about 5487.6881288936. The cubic root of 30114721 is about 311.1188188236.

Adding to 30114721 its reverse (12741103), we get a palindrome (42855824).

The spelling of 30114721 in words is "thirty million, one hundred fourteen thousand, seven hundred twenty-one".