161413235 has 4 divisors (see below), whose sum is σ = 193695888. Its totient is φ = 129130584.

The previous prime is 161413229. The next prime is 161413237. The reversal of 161413235 is 532314161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161413235 - 2¹⁰ = 161412211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161413237) 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 3 ways as a sum of consecutive naturals, for example, 16141319 + ... + 16141328.

It is an arithmetic number, because the mean of its divisors is an integer number (48423972).

Almost surely, 2^161413235 is an apocalyptic number.

161413235 is a deficient number, since it is larger than the sum of its proper divisors (32282653).

161413235 is an equidigital number, since it uses as much as digits as its factorization.

161413235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32282652.

The product of its digits is 2160, while the sum is 26.

The square root of 161413235 is about 12704.8508452480. The cubic root of 161413235 is about 544.4772194239.

Adding to 161413235 its reverse (532314161), we get a palindrome (693727396).

The spelling of 161413235 in words is "one hundred sixty-one million, four hundred thirteen thousand, two hundred thirty-five".