30948901 has 4 divisors (see below), whose sum is σ = 31109452. Its totient is φ = 30788352.

The previous prime is 30948893. The next prime is 30948913. The reversal of 30948901 is 10984903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10984903 = 2851 ⋅3853.

It can be written as a sum of positive squares in 2 ways, for example, as 20702500 + 10246401 = 4550^2 + 3201^2 .

It is a cyclic number.

It is not a de Polignac number, because 30948901 - 2³ = 30948893 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 (30948991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79986 + ... + 80371.

It is an arithmetic number, because the mean of its divisors is an integer number (7777363).

Almost surely, 2^30948901 is an apocalyptic number.

It is an amenable number.

30948901 is a deficient number, since it is larger than the sum of its proper divisors (160551).

30948901 is a wasteful number, since it uses less digits than its factorization.

30948901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160550.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 30948901 is about 5563.1736446025. The cubic root of 30948901 is about 313.9653666482.

The spelling of 30948901 in words is "thirty million, nine hundred forty-eight thousand, nine hundred one".