1331498899 has 2 divisors, whose sum is σ = 1331498900. Its totient is φ = 1331498898.

The previous prime is 1331498863. The next prime is 1331498933. The reversal of 1331498899 is 9988941331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331498899 - 2¹⁷ = 1331367827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331498299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665749449 + 665749450.

It is an arithmetic number, because the mean of its divisors is an integer number (665749450).

Almost surely, 2^1331498899 is an apocalyptic number.

1331498899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331498899 is an equidigital number, since it uses as much as digits as its factorization.

1331498899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 55.

The square root of 1331498899 is about 36489.7094945959. The cubic root of 1331498899 is about 1100.1374205727.

The spelling of 1331498899 in words is "one billion, three hundred thirty-one million, four hundred ninety-eight thousand, eight hundred ninety-nine".