171373157 has 2 divisors, whose sum is σ = 171373158. Its totient is φ = 171373156.

The previous prime is 171373133. The next prime is 171373183. The reversal of 171373157 is 751373171.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169156036 + 2217121 = 13006^2 + 1489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171373157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171373117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85686578 + 85686579.

It is an arithmetic number, because the mean of its divisors is an integer number (85686579).

Almost surely, 2^171373157 is an apocalyptic number.

It is an amenable number.

171373157 is a deficient number, since it is larger than the sum of its proper divisors (1).

171373157 is an equidigital number, since it uses as much as digits as its factorization.

171373157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15435, while the sum is 35.

The square root of 171373157 is about 13090.9570696722. The cubic root of 171373157 is about 555.4533611329.

The spelling of 171373157 in words is "one hundred seventy-one million, three hundred seventy-three thousand, one hundred fifty-seven".