161792747 has 8 divisors (see below), whose sum is σ = 164269344. Its totient is φ = 159323328.

The previous prime is 161792737. The next prime is 161792759. The reversal of 161792747 is 747297161.

161792747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161792747 - 2²⁴ = 145015531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161792698 and 161792707.

It is not an unprimeable number, because it can be changed into a prime (161792737) 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, 58733 + ... + 61425.

It is an arithmetic number, because the mean of its divisors is an integer number (20533668).

Almost surely, 2^161792747 is an apocalyptic number.

161792747 is a deficient number, since it is larger than the sum of its proper divisors (2476597).

161792747 is an equidigital number, since it uses as much as digits as its factorization.

161792747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589.

The product of its digits is 148176, while the sum is 44.

The square root of 161792747 is about 12719.7777889396. Note that the first 4 decimals coincide. The cubic root of 161792747 is about 544.9036072263.

The spelling of 161792747 in words is "one hundred sixty-one million, seven hundred ninety-two thousand, seven hundred forty-seven".