166675031 has 2 divisors, whose sum is σ = 166675032. Its totient is φ = 166675030.

The previous prime is 166675007. The next prime is 166675051. The reversal of 166675031 is 130576661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166675031 - 2⁶ = 166674967 is a prime.

It is a super-2 number, since 2×166675031² = 55561131917701922, which contains 22 as substring.

It is equal to p_9327428 and since 166675031 and 9327428 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 166674982 and 166675000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166675001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83337515 + 83337516.

It is an arithmetic number, because the mean of its divisors is an integer number (83337516).

Almost surely, 2^166675031 is an apocalyptic number.

166675031 is a deficient number, since it is larger than the sum of its proper divisors (1).

166675031 is an equidigital number, since it uses as much as digits as its factorization.

166675031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 166675031 is about 12910.2684325308. The cubic root of 166675031 is about 550.3304141352.

The spelling of 166675031 in words is "one hundred sixty-six million, six hundred seventy-five thousand, thirty-one".