161494828 has 18 divisors (see below), whose sum is σ = 310644908. Its totient is φ = 73406520.

The previous prime is 161494811. The next prime is 161494829. The reversal of 161494828 is 828494161.

It is not an unprimeable number, because it can be changed into a prime (161494829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166350 + ... + 167317.

Almost surely, 2^161494828 is an apocalyptic number.

It is an amenable number.

161494828 is a deficient number, since it is larger than the sum of its proper divisors (149150080).

161494828 is a wasteful number, since it uses less digits than its factorization.

161494828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333693 (or 333680 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 161494828 is about 12708.0615358913. The cubic root of 161494828 is about 544.5689468181.

The spelling of 161494828 in words is "one hundred sixty-one million, four hundred ninety-four thousand, eight hundred twenty-eight".