1296398701 has 16 divisors (see below), whose sum is σ = 1431041920. Its totient is φ = 1166840640.

The previous prime is 1296398693. The next prime is 1296398707. The reversal of 1296398701 is 1078936921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1296398701 - 2³ = 1296398693 is a prime.

It is a super-3 number, since 3×1296398701³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296398707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394696 + ... + 397966.

It is an arithmetic number, because the mean of its divisors is an integer number (89440120).

Almost surely, 2^1296398701 is an apocalyptic number.

It is an amenable number.

1296398701 is a deficient number, since it is larger than the sum of its proper divisors (134643219).

1296398701 is a wasteful number, since it uses less digits than its factorization.

1296398701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 1296398701 is about 36005.5370880647. The cubic root of 1296398701 is about 1090.3841479086.

The spelling of 1296398701 in words is "one billion, two hundred ninety-six million, three hundred ninety-eight thousand, seven hundred one".