391233041 has 2 divisors, whose sum is σ = 391233042. Its totient is φ = 391233040.

The previous prime is 391233001. The next prime is 391233083. The reversal of 391233041 is 140332193.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330330625 + 60902416 = 18175^2 + 7804^2 .

It is a cyclic number.

It is not a de Polignac number, because 391233041 - 2⁶ = 391232977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 391233041.

It is not a weakly prime, because it can be changed into another prime (391233001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195616520 + 195616521.

It is an arithmetic number, because the mean of its divisors is an integer number (195616521).

Almost surely, 2^391233041 is an apocalyptic number.

It is an amenable number.

391233041 is a deficient number, since it is larger than the sum of its proper divisors (1).

391233041 is an equidigital number, since it uses as much as digits as its factorization.

391233041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 391233041 is about 19779.6117504869. The cubic root of 391233041 is about 731.3835280936.

The spelling of 391233041 in words is "three hundred ninety-one million, two hundred thirty-three thousand, forty-one".