355117871 has 2 divisors, whose sum is σ = 355117872. Its totient is φ = 355117870.

The previous prime is 355117817. The next prime is 355117883. The reversal of 355117871 is 178711553.

Together with previous prime (355117817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 355117871 - 2²² = 350923567 is a prime.

It is a super-2 number, since 2×355117871² = 252217404607145282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355117801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177558935 + 177558936.

It is an arithmetic number, because the mean of its divisors is an integer number (177558936).

Almost surely, 2^355117871 is an apocalyptic number.

355117871 is a deficient number, since it is larger than the sum of its proper divisors (1).

355117871 is an equidigital number, since it uses as much as digits as its factorization.

355117871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 38.

The square root of 355117871 is about 18844.5713933748. The cubic root of 355117871 is about 708.1482334829.

The spelling of 355117871 in words is "three hundred fifty-five million, one hundred seventeen thousand, eight hundred seventy-one".