161265122 has 8 divisors (see below), whose sum is σ = 254629200. Its totient is φ = 76388724.

The previous prime is 161265079. The next prime is 161265133. The reversal of 161265122 is 221562161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161265091 and 161265100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121872 + ... + 2121947.

It is an arithmetic number, because the mean of its divisors is an integer number (31828650).

Almost surely, 2^161265122 is an apocalyptic number.

161265122 is a deficient number, since it is larger than the sum of its proper divisors (93364078).

161265122 is a wasteful number, since it uses less digits than its factorization.

161265122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243840.

The product of its digits is 1440, while the sum is 26.

The square root of 161265122 is about 12699.0205134097. The cubic root of 161265122 is about 544.3106307849.

The spelling of 161265122 in words is "one hundred sixty-one million, two hundred sixty-five thousand, one hundred twenty-two".