161458 has 16 divisors (see below), whose sum is σ = 272160. Its totient is φ = 71200.

The previous prime is 161453. The next prime is 161459. The reversal of 161458 is 854161.

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

It is not an unprimeable number, because it can be changed into a prime (161453) by changing a digit.

161458 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 7 ways as a sum of consecutive naturals, for example, 813 + ... + 991.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2¹⁶¹⁴⁵⁸ is an apocalyptic number.

161458 is a deficient number, since it is larger than the sum of its proper divisors (110702).

161458 is a wasteful number, since it uses less digits than its factorization.

161458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233.

The product of its digits is 960, while the sum is 25.

The square root of 161458 is about 401.8183669271. The cubic root of 161458 is about 54.4527548361.

The spelling of 161458 in words is "one hundred sixty-one thousand, four hundred fifty-eight".