168113401 has 4 divisors (see below), whose sum is σ = 168142500. Its totient is φ = 168084304.

The previous prime is 168113369. The next prime is 168113419. The reversal of 168113401 is 104311861.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44903401 + 123210000 = 6701^2 + 11100^2 .

It is a cyclic number.

It is not a de Polignac number, because 168113401 - 2⁵ = 168113369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168113441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (42035625).

Almost surely, 2^168113401 is an apocalyptic number.

It is an amenable number.

168113401 is a deficient number, since it is larger than the sum of its proper divisors (29099).

168113401 is an equidigital number, since it uses as much as digits as its factorization.

168113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29098.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 168113401 is about 12965.8551974021. The cubic root of 168113401 is about 551.9089600348.

It can be divided in two parts, 168 and 113401, that added together give a square (113569 = 337²).

The spelling of 168113401 in words is "one hundred sixty-eight million, one hundred thirteen thousand, four hundred one".