161874746 has 32 divisors (see below), whose sum is σ = 277364736. Its totient is φ = 70182000.

The previous prime is 161874743. The next prime is 161874761. The reversal of 161874746 is 647478161.

161874746 is nontrivially palindromic in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 161874697 and 161874706.

It is not an unprimeable number, because it can be changed into a prime (161874743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46751 + ... + 50093.

It is an arithmetic number, because the mean of its divisors is an integer number (8667648).

Almost surely, 2^161874746 is an apocalyptic number.

161874746 is a deficient number, since it is larger than the sum of its proper divisors (115489990).

161874746 is a wasteful number, since it uses less digits than its factorization.

161874746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458.

The product of its digits is 225792, while the sum is 44.

The square root of 161874746 is about 12723.0006680814. Note that the first 3 decimals coincide. The cubic root of 161874746 is about 544.9956467963.

The spelling of 161874746 in words is "one hundred sixty-one million, eight hundred seventy-four thousand, seven hundred forty-six".