30691241 has 16 divisors (see below), whose sum is σ = 36552960. Its totient is φ = 25220160.

The previous prime is 30691237. The next prime is 30691253. The reversal of 30691241 is 14219603.

30691241 = 248³ + 249³.

It is not a de Polignac number, because 30691241 - 2² = 30691237 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 30691241.

It is not an unprimeable number, because it can be changed into a prime (30693241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17555 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (2284560).

Almost surely, 2^30691241 is an apocalyptic number.

It is an amenable number.

30691241 is a deficient number, since it is larger than the sum of its proper divisors (5861719).

30691241 is a wasteful number, since it uses less digits than its factorization.

30691241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30691241 is about 5539.9675991832. The cubic root of 30691241 is about 313.0916484200.

The spelling of 30691241 in words is "thirty million, six hundred ninety-one thousand, two hundred forty-one".