161080743 has 8 divisors (see below), whose sum is σ = 221702656. Its totient is φ = 103923000.

The previous prime is 161080739. The next prime is 161080747. The reversal of 161080743 is 347080161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161080739) and next prime (161080747).

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

It is not a de Polignac number, because 161080743 - 2² = 161080739 is a prime.

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 161080743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161080747) 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, 865933 + ... + 866118.

It is an arithmetic number, because the mean of its divisors is an integer number (27712832).

Almost surely, 2^161080743 is an apocalyptic number.

161080743 is a deficient number, since it is larger than the sum of its proper divisors (60621913).

161080743 is a wasteful number, since it uses less digits than its factorization.

161080743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732085.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 161080743 is about 12691.7588615605. The cubic root of 161080743 is about 544.1031097356.

The spelling of 161080743 in words is "one hundred sixty-one million, eighty thousand, seven hundred forty-three".