2015540141 has 2 divisors, whose sum is σ = 2015540142. Its totient is φ = 2015540140.

The previous prime is 2015540129. The next prime is 2015540167. The reversal of 2015540141 is 1410455102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1922822500 + 92717641 = 43850^2 + 9629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2015540141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015540041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007770070 + 1007770071.

It is an arithmetic number, because the mean of its divisors is an integer number (1007770071).

Almost surely, 2^2015540141 is an apocalyptic number.

It is an amenable number.

2015540141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015540141 is an equidigital number, since it uses as much as digits as its factorization.

2015540141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2015540141 is about 44894.7674122497. The cubic root of 2015540141 is about 1263.1758594886.

Adding to 2015540141 its reverse (1410455102), we get a palindrome (3425995243).

The spelling of 2015540141 in words is "two billion, fifteen million, five hundred forty thousand, one hundred forty-one".