161753358 has 64 divisors (see below), whose sum is σ = 369008640. Its totient is φ = 46908288.

The previous prime is 161753353. The next prime is 161753377. The reversal of 161753358 is 853357161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161753353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96435 + ... + 98097.

It is an arithmetic number, because the mean of its divisors is an integer number (5765760).

Almost surely, 2^161753358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161753358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184504320).

161753358 is an abundant number, since it is smaller than the sum of its proper divisors (207255282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161753358 is a wasteful number, since it uses less digits than its factorization.

161753358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753.

The product of its digits is 75600, while the sum is 39.

The square root of 161753358 is about 12718.2293578941. The cubic root of 161753358 is about 544.8593840857.

The spelling of 161753358 in words is "one hundred sixty-one million, seven hundred fifty-three thousand, three hundred fifty-eight".