110401561 has 8 divisors (see below), whose sum is σ = 113236200. Its totient is φ = 107573760.

The previous prime is 110401549. The next prime is 110401573. The reversal of 110401561 is 165104011.

It is an interprime number because it is at equal distance from previous prime (110401549) and next prime (110401573).

It can be written as a sum of positive squares in 4 ways, for example, as 24950025 + 85451536 = 4995^2 + 9244^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 110401561 - 2¹³ = 110393369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110401531) 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 7 ways as a sum of consecutive naturals, for example, 51805 + ... + 53893.

It is an arithmetic number, because the mean of its divisors is an integer number (14154525).

Almost surely, 2^110401561 is an apocalyptic number.

It is an amenable number.

110401561 is a deficient number, since it is larger than the sum of its proper divisors (2834639).

110401561 is a wasteful number, since it uses less digits than its factorization.

110401561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 110401561 is about 10507.2147118064. The cubic root of 110401561 is about 479.7243223142.

Adding to 110401561 its reverse (165104011), we get a palindrome (275505572).

The spelling of 110401561 in words is "one hundred ten million, four hundred one thousand, five hundred sixty-one".