161042 has 8 divisors (see below), whose sum is σ = 276096. Its totient is φ = 69012.

The previous prime is 161039. The next prime is 161047. The reversal of 161042 is 240161.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 11503 = 161042 / (1 + 6 + 1 + 0 + 4 + 2).

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (161047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738 + ... + 5765.

It is an arithmetic number, because the mean of its divisors is an integer number (34512).

2¹⁶¹⁰⁴² is an apocalyptic number.

161042 is a deficient number, since it is larger than the sum of its proper divisors (115054).

161042 is a wasteful number, since it uses less digits than its factorization.

161042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 161042 is about 401.3003862445. The cubic root of 161042 is about 54.4059483836.

Subtracting from 161042 its sum of digits (14), we obtain a triangular number (161028 = T₅₆₇).

The spelling of 161042 in words is "one hundred sixty-one thousand, forty-two".