113653541 has 4 divisors (see below), whose sum is σ = 114058284. Its totient is φ = 113248800.

The previous prime is 113653513. The next prime is 113653559. The reversal of 113653541 is 145356311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145356311 = 5843 ⋅24877.

It can be written as a sum of positive squares in 2 ways, for example, as 45508516 + 68145025 = 6746^2 + 8255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113653541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113653591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201950 + ... + 202511.

It is an arithmetic number, because the mean of its divisors is an integer number (28514571).

Almost surely, 2^113653541 is an apocalyptic number.

It is an amenable number.

113653541 is a deficient number, since it is larger than the sum of its proper divisors (404743).

113653541 is an equidigital number, since it uses as much as digits as its factorization.

113653541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404742.

The product of its digits is 5400, while the sum is 29.

The square root of 113653541 is about 10660.8414771068. The cubic root of 113653541 is about 484.3890574956.

The spelling of 113653541 in words is "one hundred thirteen million, six hundred fifty-three thousand, five hundred forty-one".