161453 has 2 divisors, whose sum is σ = 161454. Its totient is φ = 161452.

The previous prime is 161411. The next prime is 161459. The reversal of 161453 is 354161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157609 + 3844 = 397^2 + 62^2 .

It is a cyclic number.

It is not a de Polignac number, because 161453 - 2¹⁴ = 145069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80726 + 80727.

It is an arithmetic number, because the mean of its divisors is an integer number (80727).

2¹⁶¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

161453 is a deficient number, since it is larger than the sum of its proper divisors (1).

161453 is an equidigital number, since it uses as much as digits as its factorization.

161453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 161453 is about 401.8121451624. The cubic root of 161453 is about 54.4521927362.

The spelling of 161453 in words is "one hundred sixty-one thousand, four hundred fifty-three".