1299001285 has 8 divisors (see below), whose sum is σ = 1558994976. Its totient is φ = 1039072080.

The previous prime is 1299001273. The next prime is 1299001307. The reversal of 1299001285 is 5821009921.

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

It is not a de Polignac number, because 1299001285 - 2⁷ = 1299001157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71722 + ... + 87988.

It is an arithmetic number, because the mean of its divisors is an integer number (194874372).

Almost surely, 2^1299001285 is an apocalyptic number.

It is an amenable number.

1299001285 is a deficient number, since it is larger than the sum of its proper divisors (259993691).

1299001285 is a wasteful number, since it uses less digits than its factorization.

1299001285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32243.

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

The square root of 1299001285 is about 36041.6604084773. The cubic root of 1299001285 is about 1091.1133267309.

The spelling of 1299001285 in words is "one billion, two hundred ninety-nine million, one thousand, two hundred eighty-five".