161533363 has 2 divisors, whose sum is σ = 161533364. Its totient is φ = 161533362.

The previous prime is 161533357. The next prime is 161533369. The reversal of 161533363 is 363335161.

161533363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (161533357) and next prime (161533369).

It is a cyclic number.

It is not a de Polignac number, because 161533363 - 2⁵ = 161533331 is a prime.

It is not a weakly prime, because it can be changed into another prime (161533369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80766681 + 80766682.

It is an arithmetic number, because the mean of its divisors is an integer number (80766682).

Almost surely, 2^161533363 is an apocalyptic number.

161533363 is a deficient number, since it is larger than the sum of its proper divisors (1).

161533363 is an equidigital number, since it uses as much as digits as its factorization.

161533363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 31.

The square root of 161533363 is about 12709.5776090317. The cubic root of 161533363 is about 544.6122573805.

The spelling of 161533363 in words is "one hundred sixty-one million, five hundred thirty-three thousand, three hundred sixty-three".