160408997 has 12 divisors (see below), whose sum is σ = 188527500. Its totient is φ = 136071936.

The previous prime is 160408981. The next prime is 160409017. The reversal of 160408997 is 799804061.

It can be written as a sum of positive squares in 2 ways, for example, as 115906756 + 44502241 = 10766^2 + 6671^2 .

It is not a de Polignac number, because 160408997 - 2⁴ = 160408981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160408097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12122 + ... + 21627.

It is an arithmetic number, because the mean of its divisors is an integer number (15710625).

Almost surely, 2^160408997 is an apocalyptic number.

It is an amenable number.

160408997 is a deficient number, since it is larger than the sum of its proper divisors (28118503).

160408997 is an equidigital number, since it uses as much as digits as its factorization.

160408997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33860 (or 33853 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 160408997 is about 12665.2673481455. The cubic root of 160408997 is about 543.3457083343.

The spelling of 160408997 in words is "one hundred sixty million, four hundred eight thousand, nine hundred ninety-seven".