1297085185 has 8 divisors (see below), whose sum is σ = 1698002496. Its totient is φ = 943334640.

The previous prime is 1297085183. The next prime is 1297085189. The reversal of 1297085185 is 5815807921.

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

It is not a de Polignac number, because 1297085185 - 2¹ = 1297085183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297085183) 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, 11791629 + ... + 11791738.

It is an arithmetic number, because the mean of its divisors is an integer number (212250312).

Almost surely, 2^1297085185 is an apocalyptic number.

It is an amenable number.

1297085185 is a deficient number, since it is larger than the sum of its proper divisors (400917311).

1297085185 is a wasteful number, since it uses less digits than its factorization.

1297085185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23583383.

The product of its (nonzero) digits is 201600, while the sum is 46.

The square root of 1297085185 is about 36015.0688601313. The cubic root of 1297085185 is about 1090.5765782121.

The spelling of 1297085185 in words is "one billion, two hundred ninety-seven million, eighty-five thousand, one hundred eighty-five".