161070263 has 8 divisors (see below), whose sum is σ = 170689680. Its totient is φ = 151721920.

The previous prime is 161070253. The next prime is 161070319. The reversal of 161070263 is 362070161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161070263 - 2⁶ = 161070199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161070253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66545 + ... + 68922.

It is an arithmetic number, because the mean of its divisors is an integer number (21336210).

Almost surely, 2^161070263 is an apocalyptic number.

161070263 is a deficient number, since it is larger than the sum of its proper divisors (9619417).

161070263 is a wasteful number, since it uses less digits than its factorization.

161070263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135537.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 161070263 is about 12691.3459885073. The cubic root of 161070263 is about 544.0913095991.

It can be divided in two parts, 161070 and 263, that multiplied together give a triangular number (42361410 = T₉₂₀₄).

The spelling of 161070263 in words is "one hundred sixty-one million, seventy thousand, two hundred sixty-three".