161422337 has 2 divisors, whose sum is σ = 161422338. Its totient is φ = 161422336.

The previous prime is 161422333. The next prime is 161422343. The reversal of 161422337 is 733224161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145709041 + 15713296 = 12071^2 + 3964^2 .

It is a cyclic number.

It is not a de Polignac number, because 161422337 - 2² = 161422333 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (161422333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80711168 + 80711169.

It is an arithmetic number, because the mean of its divisors is an integer number (80711169).

Almost surely, 2^161422337 is an apocalyptic number.

It is an amenable number.

161422337 is a deficient number, since it is larger than the sum of its proper divisors (1).

161422337 is an equidigital number, since it uses as much as digits as its factorization.

161422337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 161422337 is about 12705.2090498346. The cubic root of 161422337 is about 544.4874534845.

Adding to 161422337 its reverse (733224161), we get a palindrome (894646498).

The spelling of 161422337 in words is "one hundred sixty-one million, four hundred twenty-two thousand, three hundred thirty-seven".