1302097681 has 8 divisors (see below), whose sum is σ = 1345068800. Its totient is φ = 1259187120.

The previous prime is 1302097661. The next prime is 1302097691. The reversal of 1302097681 is 1867902031.

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 1302097681 - 2⁵ = 1302097649 is a prime.

It is a super-2 number, since 2×1302097681² = 3390916741731155522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1302097681.

It is not an unprimeable number, because it can be changed into a prime (1302097661) 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, 30835 + ... + 59623.

It is an arithmetic number, because the mean of its divisors is an integer number (168133600).

Almost surely, 2^1302097681 is an apocalyptic number.

It is an amenable number.

1302097681 is a deficient number, since it is larger than the sum of its proper divisors (42971119).

1302097681 is a wasteful number, since it uses less digits than its factorization.

1302097681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30279.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1302097681 is about 36084.5906309050. The cubic root of 1302097681 is about 1091.9795917349.

The spelling of 1302097681 in words is "one billion, three hundred two million, ninety-seven thousand, six hundred eighty-one".