1012015541 has 2 divisors, whose sum is σ = 1012015542. Its totient is φ = 1012015540.

The previous prime is 1012015507. The next prime is 1012015547. The reversal of 1012015541 is 1455102101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1000140625 + 11874916 = 31625^2 + 3446^2 .

It is an emirp because it is prime and its reverse (1455102101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012015541 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012015547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506007770 + 506007771.

It is an arithmetic number, because the mean of its divisors is an integer number (506007771).

Almost surely, 2^1012015541 is an apocalyptic number.

It is an amenable number.

1012015541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012015541 is an equidigital number, since it uses as much as digits as its factorization.

1012015541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1012015541 is about 31812.1917038107. The cubic root of 1012015541 is about 1003.9892450952.

Adding to 1012015541 its reverse (1455102101), we get a palindrome (2467117642).

The spelling of 1012015541 in words is "one billion, twelve million, fifteen thousand, five hundred forty-one".