161385763 has 12 divisors (see below), whose sum is σ = 204801912. Its totient is φ = 125754720.

The previous prime is 161385761. The next prime is 161385797. The reversal of 161385763 is 367583161.

It is a happy number.

161385763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161385763 - 2¹ = 161385761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161385761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149170 + ... + 150247.

It is an arithmetic number, because the mean of its divisors is an integer number (17066826).

Almost surely, 2^161385763 is an apocalyptic number.

161385763 is a deficient number, since it is larger than the sum of its proper divisors (43416149).

161385763 is a wasteful number, since it uses less digits than its factorization.

161385763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299442 (or 299435 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 161385763 is about 12703.7696373950. The cubic root of 161385763 is about 544.4463282626.

The spelling of 161385763 in words is "one hundred sixty-one million, three hundred eighty-five thousand, seven hundred sixty-three".