30542961 has 4 divisors (see below), whose sum is σ = 40723952. Its totient is φ = 20361972.

The previous prime is 30542959. The next prime is 30542971. The reversal of 30542961 is 16924503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30542961 - 2¹ = 30542959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30542951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5090491 + ... + 5090496.

It is an arithmetic number, because the mean of its divisors is an integer number (10180988).

Almost surely, 2^30542961 is an apocalyptic number.

It is an amenable number.

30542961 is a deficient number, since it is larger than the sum of its proper divisors (10180991).

30542961 is a wasteful number, since it uses less digits than its factorization.

30542961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180990.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30542961 is about 5526.5686460950. The cubic root of 30542961 is about 312.5866162035.

The spelling of 30542961 in words is "thirty million, five hundred forty-two thousand, nine hundred sixty-one".