161042763 has 12 divisors (see below), whose sum is σ = 249780840. Its totient is φ = 92024352.

The previous prime is 161042753. The next prime is 161042767. The reversal of 161042763 is 367240161.

It is not a de Polignac number, because 161042763 - 2⁴ = 161042747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161042763.

It is not an unprimeable number, because it can be changed into a prime (161042767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547618 + ... + 547911.

It is an arithmetic number, because the mean of its divisors is an integer number (20815070).

Almost surely, 2^161042763 is an apocalyptic number.

161042763 is a deficient number, since it is larger than the sum of its proper divisors (88738077).

161042763 is a wasteful number, since it uses less digits than its factorization.

161042763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095546 (or 1095539 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 161042763 is about 12690.2625268353. The cubic root of 161042763 is about 544.0603430665.

The spelling of 161042763 in words is "one hundred sixty-one million, forty-two thousand, seven hundred sixty-three".