111342541 has 4 divisors (see below), whose sum is σ = 111369052. Its totient is φ = 111316032.

The previous prime is 111342487. The next prime is 111342547. The reversal of 111342541 is 145243111.

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 57320041 + 54022500 = 7571^2 + 7350^2 .

It is a cyclic number.

It is not a de Polignac number, because 111342541 - 2¹⁵ = 111309773 is a prime.

It is a super-2 number, since 2×111342541² = 24794322872673362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111342547) 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, 5406 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (27842263).

Almost surely, 2^111342541 is an apocalyptic number.

It is an amenable number.

111342541 is a deficient number, since it is larger than the sum of its proper divisors (26511).

111342541 is an equidigital number, since it uses as much as digits as its factorization.

111342541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26510.

The product of its digits is 480, while the sum is 22.

The square root of 111342541 is about 10551.8975070837. The cubic root of 111342541 is about 481.0834049550.

Adding to 111342541 its reverse (145243111), we get a palindrome (256585652).

The spelling of 111342541 in words is "one hundred eleven million, three hundred forty-two thousand, five hundred forty-one".