161413244 has 6 divisors (see below), whose sum is σ = 282473184. Its totient is φ = 80706620.

The previous prime is 161413243. The next prime is 161413247. The reversal of 161413244 is 442314161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161413243) 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 as a sum of consecutive naturals, namely, 20176652 + ... + 20176659.

It is an arithmetic number, because the mean of its divisors is an integer number (47078864).

Almost surely, 2^161413244 is an apocalyptic number.

It is an amenable number.

161413244 is a deficient number, since it is larger than the sum of its proper divisors (121059940).

161413244 is a wasteful number, since it uses less digits than its factorization.

161413244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40353315 (or 40353313 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 161413244 is about 12704.8511994435. The cubic root of 161413244 is about 544.4772295435.

The spelling of 161413244 in words is "one hundred sixty-one million, four hundred thirteen thousand, two hundred forty-four".