161151763 has 2 divisors, whose sum is σ = 161151764. Its totient is φ = 161151762.

The previous prime is 161151707. The next prime is 161151779. The reversal of 161151763 is 367151161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161151763 - 2⁹ = 161151251 is a prime.

It is not a weakly prime, because it can be changed into another prime (161151703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80575881 + 80575882.

It is an arithmetic number, because the mean of its divisors is an integer number (80575882).

Almost surely, 2^161151763 is an apocalyptic number.

161151763 is a deficient number, since it is larger than the sum of its proper divisors (1).

161151763 is an equidigital number, since it uses as much as digits as its factorization.

161151763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 31.

The square root of 161151763 is about 12694.5564317939. The cubic root of 161151763 is about 544.1830624443.

The spelling of 161151763 in words is "one hundred sixty-one million, one hundred fifty-one thousand, seven hundred sixty-three".