30012541 has 6 divisors (see below), whose sum is σ = 32498970. Its totient is φ = 27703728.

The previous prime is 30012527. The next prime is 30012553. The reversal of 30012541 is 14521003.

It can be written as a sum of positive squares in 3 ways, for example, as 1390041 + 28622500 = 1179^2 + 5350^2 .

It is not a de Polignac number, because 30012541 - 2⁹ = 30012029 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 (30012841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88626 + ... + 88963.

It is an arithmetic number, because the mean of its divisors is an integer number (5416495).

Almost surely, 2^30012541 is an apocalyptic number.

It is an amenable number.

30012541 is a deficient number, since it is larger than the sum of its proper divisors (2486429).

30012541 is a wasteful number, since it uses less digits than its factorization.

30012541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177615 (or 177602 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30012541 is about 5478.3702868645. The cubic root of 30012541 is about 310.7665421222.

Adding to 30012541 its reverse (14521003), we get a palindrome (44533544).

The spelling of 30012541 in words is "thirty million, twelve thousand, five hundred forty-one".