141111540 has 36 divisors (see below), whose sum is σ = 428038884. Its totient is φ = 37629696.

The previous prime is 141111533. The next prime is 141111541. The reversal of 141111540 is 45111141.

141111540 is a `hidden beast` number, since 14 + 1 + 111 + 540 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 58155876 + 82955664 = 7626^2 + 9108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141111541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391797 + ... + 392156.

It is an arithmetic number, because the mean of its divisors is an integer number (11889969).

Almost surely, 2^141111540 is an apocalyptic number.

141111540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141111540 is an abundant number, since it is smaller than the sum of its proper divisors (286927344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

141111540 is a wasteful number, since it uses less digits than its factorization.

141111540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783968 (or 783963 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 141111540 is about 11879.0378398252. The cubic root of 141111540 is about 520.6199952009.

Adding to 141111540 its reverse (45111141), we get a palindrome (186222681).

It can be divided in two parts, 14111 and 1540, that added together give a palindrome (15651).

The spelling of 141111540 in words is "one hundred forty-one million, one hundred eleven thousand, five hundred forty".