940088161 has 2 divisors, whose sum is σ = 940088162. Its totient is φ = 940088160.

The previous prime is 940088159. The next prime is 940088183. The reversal of 940088161 is 161880049.

940088161 = 21680² + 21681².

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., 470065761 + 470022400 = 21681^2 + 21680^2 .

It is a cyclic number.

It is not a de Polignac number, because 940088161 - 2¹ = 940088159 is a prime.

Together with 940088159, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 940088161.

It is not a weakly prime, because it can be changed into another prime (940088111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470044080 + 470044081.

It is an arithmetic number, because the mean of its divisors is an integer number (470044081).

Almost surely, 2^940088161 is an apocalyptic number.

940088161 is the 21681-st centered square number.

It is an amenable number.

940088161 is a deficient number, since it is larger than the sum of its proper divisors (1).

940088161 is an equidigital number, since it uses as much as digits as its factorization.

940088161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 940088161 is about 30660.8571471836. The cubic root of 940088161 is about 979.6167323295.

The spelling of 940088161 in words is "nine hundred forty million, eighty-eight thousand, one hundred sixty-one".