961021093 has 2 divisors, whose sum is σ = 961021094. Its totient is φ = 961021092.

The previous prime is 961021081. The next prime is 961021123. The reversal of 961021093 is 390120169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 842276484 + 118744609 = 29022^2 + 10897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961021093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961028093) 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 as a sum of consecutive naturals, namely, 480510546 + 480510547.

It is an arithmetic number, because the mean of its divisors is an integer number (480510547).

Almost surely, 2^961021093 is an apocalyptic number.

It is an amenable number.

961021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

961021093 is an equidigital number, since it uses as much as digits as its factorization.

961021093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 961021093 is about 31000.3402078106. The cubic root of 961021093 is about 986.8344602299.

It can be divided in two parts, 9610 and 21093, that added together give a palindrome (30703).

The spelling of 961021093 in words is "nine hundred sixty-one million, twenty-one thousand, ninety-three".