111240141 has 8 divisors (see below), whose sum is σ = 148588704. Its totient is φ = 74025840.

The previous prime is 111240139. The next prime is 111240161. The reversal of 111240141 is 141042111.

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

It is not a de Polignac number, because 111240141 - 2¹ = 111240139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111240141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111240131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31615 + ... + 34956.

It is an arithmetic number, because the mean of its divisors is an integer number (18573588).

Almost surely, 2^111240141 is an apocalyptic number.

It is an amenable number.

111240141 is a deficient number, since it is larger than the sum of its proper divisors (37348563).

111240141 is an equidigital number, since it uses as much as digits as its factorization.

111240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67131.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 111240141 is about 10547.0441830875. The cubic root of 111240141 is about 480.9358780826.

Adding to 111240141 its reverse (141042111), we get a palindrome (252282252).

The spelling of 111240141 in words is "one hundred eleven million, two hundred forty thousand, one hundred forty-one".