161083263 has 16 divisors (see below), whose sum is σ = 234516096. Its totient is φ = 97537440.

The previous prime is 161083261. The next prime is 161083267. The reversal of 161083263 is 362380161.

It is not a de Polignac number, because 161083263 - 2¹ = 161083261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161083263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161083261) 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, 64881 + ... + 67317.

It is an arithmetic number, because the mean of its divisors is an integer number (14657256).

Almost surely, 2^161083263 is an apocalyptic number.

161083263 is a deficient number, since it is larger than the sum of its proper divisors (73432833).

161083263 is a wasteful number, since it uses less digits than its factorization.

161083263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 161083263 is about 12691.8581381924. The cubic root of 161083263 is about 544.1059470966.

The spelling of 161083263 in words is "one hundred sixty-one million, eighty-three thousand, two hundred sixty-three".