161182046 has 4 divisors (see below), whose sum is σ = 241773072. Its totient is φ = 80591022.

The previous prime is 161182033. The next prime is 161182057. The reversal of 161182046 is 640281161.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×161182046² = 51959303905492232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40295510 + ... + 40295513.

It is an arithmetic number, because the mean of its divisors is an integer number (60443268).

Almost surely, 2^161182046 is an apocalyptic number.

161182046 is a deficient number, since it is larger than the sum of its proper divisors (80591026).

161182046 is an equidigital number, since it uses as much as digits as its factorization.

161182046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80591025.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 161182046 is about 12695.7491311068. The cubic root of 161182046 is about 544.2171472167.

The spelling of 161182046 in words is "one hundred sixty-one million, one hundred eighty-two thousand, forty-six".