961091 has 2 divisors, whose sum is σ = 961092. Its totient is φ = 961090.

The previous prime is 961087. The next prime is 961097. The reversal of 961091 is 190169.

961091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 961091 - 2² = 961087 is a prime.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 961091.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961091.

It is not a weakly prime, because it can be changed into another prime (961097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480545 + 480546.

It is an arithmetic number, because the mean of its divisors is an integer number (480546).

2⁹⁶¹⁰⁹¹ is an apocalyptic number.

961091 is a deficient number, since it is larger than the sum of its proper divisors (1).

961091 is an equidigital number, since it uses as much as digits as its factorization.

961091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 961091 is about 980.3524876288. The cubic root of 961091 is about 98.6858387892.

The spelling of 961091 in words is "nine hundred sixty-one thousand, ninety-one".