111742141 has 4 divisors (see below), whose sum is σ = 127705312. Its totient is φ = 95778972.

The previous prime is 111742117. The next prime is 111742177. The reversal of 111742141 is 141247111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141247111 = 4813 ⋅29347.

It is a cyclic number.

It is not a de Polignac number, because 111742141 - 2¹¹ = 111740093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111748141) 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, 7981575 + ... + 7981588.

It is an arithmetic number, because the mean of its divisors is an integer number (31926328).

Almost surely, 2^111742141 is an apocalyptic number.

It is an amenable number.

111742141 is a deficient number, since it is larger than the sum of its proper divisors (15963171).

111742141 is an equidigital number, since it uses as much as digits as its factorization.

111742141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963170.

The product of its digits is 224, while the sum is 22.

The square root of 111742141 is about 10570.8155314526. The cubic root of 111742141 is about 481.6582418650.

Adding to 111742141 its reverse (141247111), we get a palindrome (252989252).

The spelling of 111742141 in words is "one hundred eleven million, seven hundred forty-two thousand, one hundred forty-one".