15012140441 has 2 divisors, whose sum is σ = 15012140442. Its totient is φ = 15012140440.

The previous prime is 15012140419. The next prime is 15012140461. The reversal of 15012140441 is 14404121051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7632643225 + 7379497216 = 87365^2 + 85904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15012140441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15012140401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506070220 + 7506070221.

It is an arithmetic number, because the mean of its divisors is an integer number (7506070221).

Almost surely, 2^15012140441 is an apocalyptic number.

It is an amenable number.

15012140441 is a deficient number, since it is larger than the sum of its proper divisors (1).

15012140441 is an equidigital number, since it uses as much as digits as its factorization.

15012140441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 15012140441 its reverse (14404121051), we get a palindrome (29416261492).

The spelling of 15012140441 in words is "fifteen billion, twelve million, one hundred forty thousand, four hundred forty-one".