161276946 has 16 divisors (see below), whose sum is σ = 333676800. Its totient is φ = 51905168.

The previous prime is 161276923. The next prime is 161276981. The reversal of 161276946 is 649672161.

It is a super-2 number, since 2×161276946² = 52020506622173832, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161276898 and 161276907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463266 + ... + 463613.

It is an arithmetic number, because the mean of its divisors is an integer number (20854800).

Almost surely, 2^161276946 is an apocalyptic number.

161276946 is an abundant number, since it is smaller than the sum of its proper divisors (172399854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161276946 is a wasteful number, since it uses less digits than its factorization.

161276946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926913.

The product of its digits is 108864, while the sum is 42.

The square root of 161276946 is about 12699.4860525928. The cubic root of 161276946 is about 544.3239334581.

The spelling of 161276946 in words is "one hundred sixty-one million, two hundred seventy-six thousand, nine hundred forty-six".