161486956 has 24 divisors (see below), whose sum is σ = 295835904. Its totient is φ = 76985040.

The previous prime is 161486939. The next prime is 161486959. The reversal of 161486956 is 659684161.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (161486959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27801 + ... + 33103.

It is an arithmetic number, because the mean of its divisors is an integer number (12326496).

Almost surely, 2^161486956 is an apocalyptic number.

It is an amenable number.

161486956 is a deficient number, since it is larger than the sum of its proper divisors (134348948).

161486956 is a wasteful number, since it uses less digits than its factorization.

161486956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661 (or 5659 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 161486956 is about 12707.7518074599. The cubic root of 161486956 is about 544.5600984100.

It can be divided in two parts, 16148 and 6956, that added together give a square (23104 = 152²).

The spelling of 161486956 in words is "one hundred sixty-one million, four hundred eighty-six thousand, nine hundred fifty-six".