161726042 has 8 divisors (see below), whose sum is σ = 243604800. Its totient is φ = 80524444.

The previous prime is 161726029. The next prime is 161726093. The reversal of 161726042 is 240627161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161725996 and 161726014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168692 + ... + 169647.

It is an arithmetic number, because the mean of its divisors is an integer number (30450600).

Almost surely, 2^161726042 is an apocalyptic number.

161726042 is a deficient number, since it is larger than the sum of its proper divisors (81878758).

161726042 is a wasteful number, since it uses less digits than its factorization.

161726042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338580.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 161726042 is about 12717.1554209265. The cubic root of 161726042 is about 544.8287114266.

The spelling of 161726042 in words is "one hundred sixty-one million, seven hundred twenty-six thousand, forty-two".