161260863 has 4 divisors (see below), whose sum is σ = 215014488. Its totient is φ = 107507240.

The previous prime is 161260829. The next prime is 161260867. The reversal of 161260863 is 368062161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368062161 = 3 ⋅122687387.

It is a cyclic number.

It is not a de Polignac number, because 161260863 - 2²⁶ = 94151999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161260867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26876808 + ... + 26876813.

It is an arithmetic number, because the mean of its divisors is an integer number (53753622).

Almost surely, 2^161260863 is an apocalyptic number.

161260863 is a deficient number, since it is larger than the sum of its proper divisors (53753625).

161260863 is an equidigital number, since it uses as much as digits as its factorization.

161260863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53753624.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 161260863 is about 12698.8528222041. The cubic root of 161260863 is about 544.3058390082.

The spelling of 161260863 in words is "one hundred sixty-one million, two hundred sixty thousand, eight hundred sixty-three".