1299381601 has 8 divisors (see below), whose sum is σ = 1485251840. Its totient is φ = 1113572448.

The previous prime is 1299381581. The next prime is 1299381623. The reversal of 1299381601 is 1061839921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1299381601 - 2¹⁵ = 1299348833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1299381631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47560 + ... + 69718.

It is an arithmetic number, because the mean of its divisors is an integer number (185656480).

Almost surely, 2^1299381601 is an apocalyptic number.

It is an amenable number.

1299381601 is a deficient number, since it is larger than the sum of its proper divisors (185870239).

1299381601 is an equidigital number, since it uses as much as digits as its factorization.

1299381601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30543.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1299381601 is about 36046.9360833899. The cubic root of 1299381601 is about 1091.2198001603.

The spelling of 1299381601 in words is "one billion, two hundred ninety-nine million, three hundred eighty-one thousand, six hundred one".