161353401 has 8 divisors (see below), whose sum is σ = 234695904. Its totient is φ = 97789920.

The previous prime is 161353399. The next prime is 161353403. The reversal of 161353401 is 104353161.

It is an interprime number because it is at equal distance from previous prime (161353399) and next prime (161353403).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161353401 - 2¹ = 161353399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161353403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2444716 + ... + 2444781.

It is an arithmetic number, because the mean of its divisors is an integer number (29336988).

Almost surely, 2^161353401 is an apocalyptic number.

161353401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161353401 is a deficient number, since it is larger than the sum of its proper divisors (73342503).

161353401 is a wasteful number, since it uses less digits than its factorization.

161353401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889511.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 161353401 is about 12702.4958571141. The cubic root of 161353401 is about 544.4099339950.

The spelling of 161353401 in words is "one hundred sixty-one million, three hundred fifty-three thousand, four hundred one".