1299415141 has 2 divisors, whose sum is σ = 1299415142. Its totient is φ = 1299415140.

The previous prime is 1299415133. The next prime is 1299415163. The reversal of 1299415141 is 1415149921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981506241 + 317908900 = 31329^2 + 17830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299415141 - 2³ = 1299415133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1299415141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299415121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649707570 + 649707571.

It is an arithmetic number, because the mean of its divisors is an integer number (649707571).

Almost surely, 2^1299415141 is an apocalyptic number.

It is an amenable number.

1299415141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299415141 is an equidigital number, since it uses as much as digits as its factorization.

1299415141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 37.

The square root of 1299415141 is about 36047.4013071678. The cubic root of 1299415141 is about 1091.2291890361.

The spelling of 1299415141 in words is "one billion, two hundred ninety-nine million, four hundred fifteen thousand, one hundred forty-one".