1320854597 has 6 divisors (see below), whose sum is σ = 1394032518. Its totient is φ = 1251335592.

The previous prime is 1320854581. The next prime is 1320854609. The reversal of 1320854597 is 7954580231.

It can be written as a sum of positive squares in only one way, i.e., 673610116 + 647244481 = 25954^2 + 25441^2 .

It is not a de Polignac number, because 1320854597 - 2⁴ = 1320854581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320854567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1829078 + ... + 1829799.

It is an arithmetic number, because the mean of its divisors is an integer number (232338753).

Almost surely, 2^1320854597 is an apocalyptic number.

It is an amenable number.

1320854597 is a deficient number, since it is larger than the sum of its proper divisors (73177921).

1320854597 is an equidigital number, since it uses as much as digits as its factorization.

1320854597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658915 (or 3658896 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 1320854597 is about 36343.5633503376. The cubic root of 1320854597 is about 1097.1979917004.

The spelling of 1320854597 in words is "one billion, three hundred twenty million, eight hundred fifty-four thousand, five hundred ninety-seven".