870913133 has 2 divisors, whose sum is σ = 870913134. Its totient is φ = 870913132.

The previous prime is 870913093. The next prime is 870913151. The reversal of 870913133 is 331319078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480574084 + 390339049 = 21922^2 + 19757^2 .

It is a cyclic number.

It is not a de Polignac number, because 870913133 - 2¹² = 870909037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870913093 and 870913102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870993133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435456566 + 435456567.

It is an arithmetic number, because the mean of its divisors is an integer number (435456567).

Almost surely, 2^870913133 is an apocalyptic number.

It is an amenable number.

870913133 is a deficient number, since it is larger than the sum of its proper divisors (1).

870913133 is an equidigital number, since it uses as much as digits as its factorization.

870913133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 870913133 is about 29511.2374020474. The cubic root of 870913133 is about 954.9741440146.

The spelling of 870913133 in words is "eight hundred seventy million, nine hundred thirteen thousand, one hundred thirty-three".