170131427 has 8 divisors (see below), whose sum is σ = 184533552. Its totient is φ = 156217600.

The previous prime is 170131411. The next prime is 170131459. The reversal of 170131427 is 724131071.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 170131427 - 2⁴ = 170131411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170131396 and 170131405.

It is not an unprimeable number, because it can be changed into a prime (170131127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121349 + ... + 122742.

It is an arithmetic number, because the mean of its divisors is an integer number (23066694).

Almost surely, 2^170131427 is an apocalyptic number.

170131427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

170131427 is a deficient number, since it is larger than the sum of its proper divisors (14402125).

170131427 is a wasteful number, since it uses less digits than its factorization.

170131427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244149.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 170131427 is about 13043.4438320560. The cubic root of 170131427 is about 554.1085458960.

Adding to 170131427 its reverse (724131071), we get a palindrome (894262498).

The spelling of 170131427 in words is "one hundred seventy million, one hundred thirty-one thousand, four hundred twenty-seven".