161292983 has 8 divisors (see below), whose sum is σ = 167006880. Its totient is φ = 155589280.

The previous prime is 161292979. The next prime is 161293019. The reversal of 161292983 is 389292161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161292983 - 2² = 161292979 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161292983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161292913) 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, 44873 + ... + 48333.

It is an arithmetic number, because the mean of its divisors is an integer number (20875860).

Almost surely, 2^161292983 is an apocalyptic number.

161292983 is a deficient number, since it is larger than the sum of its proper divisors (5713897).

161292983 is a wasteful number, since it uses less digits than its factorization.

161292983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097.

The product of its digits is 46656, while the sum is 41.

The square root of 161292983 is about 12700.1174404019. The cubic root of 161292983 is about 544.3419749571.

The spelling of 161292983 in words is "one hundred sixty-one million, two hundred ninety-two thousand, nine hundred eighty-three".