171407057 has 2 divisors, whose sum is σ = 171407058. Its totient is φ = 171407056.

The previous prime is 171407053. The next prime is 171407083. The reversal of 171407057 is 750704171.

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., 131767441 + 39639616 = 11479^2 + 6296^2 .

It is a cyclic number.

It is not a de Polignac number, because 171407057 - 2² = 171407053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (171407053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85703528 + 85703529.

It is an arithmetic number, because the mean of its divisors is an integer number (85703529).

Almost surely, 2^171407057 is an apocalyptic number.

It is an amenable number.

171407057 is a deficient number, since it is larger than the sum of its proper divisors (1).

171407057 is an equidigital number, since it uses as much as digits as its factorization.

171407057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 171407057 is about 13092.2517925680. The cubic root of 171407057 is about 555.4899841914.

The spelling of 171407057 in words is "one hundred seventy-one million, four hundred seven thousand, fifty-seven".