161492 has 12 divisors (see below), whose sum is σ = 288960. Its totient is φ = 78936.

The previous prime is 161471. The next prime is 161503. The reversal of 161492 is 294161.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

161492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242 + ... + 617.

It is an arithmetic number, because the mean of its divisors is an integer number (24080).

2¹⁶¹⁴⁹² is an apocalyptic number.

It is an amenable number.

161492 is a deficient number, since it is larger than the sum of its proper divisors (127468).

161492 is a wasteful number, since it uses less digits than its factorization.

161492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 908 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 161492 is about 401.8606723729. The cubic root of 161492 is about 54.4565768079.

The spelling of 161492 in words is "one hundred sixty-one thousand, four hundred ninety-two".