1299970694 has 16 divisors (see below), whose sum is σ = 2130209280. Its totient is φ = 590066760.

The previous prime is 1299970687. The next prime is 1299970717. The reversal of 1299970694 is 4960799921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25274 + ... + 56909.

It is an arithmetic number, because the mean of its divisors is an integer number (133138080).

Almost surely, 2^1299970694 is an apocalyptic number.

1299970694 is a deficient number, since it is larger than the sum of its proper divisors (830238586).

1299970694 is a wasteful number, since it uses less digits than its factorization.

1299970694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82915.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 1299970694 is about 36055.1063512507. The cubic root of 1299970694 is about 1091.3846818816.

The spelling of 1299970694 in words is "one billion, two hundred ninety-nine million, nine hundred seventy thousand, six hundred ninety-four".