1670131 has 6 divisors (see below), whose sum is σ = 1774460. Its totient is φ = 1571616.

The previous prime is 1670129. The next prime is 1670161. The reversal of 1670131 is 1310761.

It is a happy number.

It is not a de Polignac number, because 1670131 - 2¹ = 1670129 is a prime.

It is a super-2 number, since 2×1670131² = 5578675114322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1670099 and 1670108.

It is not an unprimeable number, because it can be changed into a prime (1670161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2601 + ... + 3178.

2^1670131 is an apocalyptic number.

1670131 is a deficient number, since it is larger than the sum of its proper divisors (104329).

1670131 is an equidigital number, since it uses as much as digits as its factorization.

1670131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813 (or 5796 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1670131 is about 1292.3354827598. The cubic root of 1670131 is about 118.6452017243.

Adding to 1670131 its reverse (1310761), we get a palindrome (2980892).

The spelling of 1670131 in words is "one million, six hundred seventy thousand, one hundred thirty-one".