170125213 has 2 divisors, whose sum is σ = 170125214. Its totient is φ = 170125212.

The previous prime is 170125201. The next prime is 170125217. The reversal of 170125213 is 312521071.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133679844 + 36445369 = 11562^2 + 6037^2 .

It is a cyclic number.

It is not a de Polignac number, because 170125213 - 2¹³ = 170117021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170125217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85062606 + 85062607.

It is an arithmetic number, because the mean of its divisors is an integer number (85062607).

Almost surely, 2^170125213 is an apocalyptic number.

It is an amenable number.

170125213 is a deficient number, since it is larger than the sum of its proper divisors (1).

170125213 is an equidigital number, since it uses as much as digits as its factorization.

170125213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 170125213 is about 13043.2056259188. The cubic root of 170125213 is about 554.1017995970.

Adding to 170125213 its reverse (312521071), we get a palindrome (482646284).

The spelling of 170125213 in words is "one hundred seventy million, one hundred twenty-five thousand, two hundred thirteen".