161345414 has 16 divisors (see below), whose sum is σ = 258703200. Its totient is φ = 75282240.

The previous prime is 161345411. The next prime is 161345449. The reversal of 161345414 is 414543161.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161345411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40889 + ... + 44660.

It is an arithmetic number, because the mean of its divisors is an integer number (16168950).

Almost surely, 2^161345414 is an apocalyptic number.

161345414 is a deficient number, since it is larger than the sum of its proper divisors (97357786).

161345414 is a wasteful number, since it uses less digits than its factorization.

161345414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85615.

The product of its digits is 5760, while the sum is 29.

The square root of 161345414 is about 12702.1814661892. The cubic root of 161345414 is about 544.4009510754.

Adding to 161345414 its reverse (414543161), we get a palindrome (575888575).

The spelling of 161345414 in words is "one hundred sixty-one million, three hundred forty-five thousand, four hundred fourteen".