113145401 has 4 divisors (see below), whose sum is σ = 114695412. Its totient is φ = 111595392.

The previous prime is 113145377. The next prime is 113145413. The reversal of 113145401 is 104541311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104541311 = 7 ⋅14934473.

It can be written as a sum of positive squares in 2 ways, for example, as 96138025 + 17007376 = 9805^2 + 4124^2 .

It is not a de Polignac number, because 113145401 - 2⁶ = 113145337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113145491) 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 in 3 ways as a sum of consecutive naturals, for example, 774896 + ... + 775041.

It is an arithmetic number, because the mean of its divisors is an integer number (28673853).

Almost surely, 2^113145401 is an apocalyptic number.

It is an amenable number.

113145401 is a deficient number, since it is larger than the sum of its proper divisors (1550011).

113145401 is an equidigital number, since it uses as much as digits as its factorization.

113145401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550010.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 113145401 is about 10636.9827018756. The cubic root of 113145401 is about 483.6660848818. Note that the first 3 decimals are identical.

Adding to 113145401 its reverse (104541311), we get a palindrome (217686712).

The spelling of 113145401 in words is "one hundred thirteen million, one hundred forty-five thousand, four hundred one".