166453031 has 2 divisors, whose sum is σ = 166453032. Its totient is φ = 166453030.

The previous prime is 166453009. The next prime is 166453033. The reversal of 166453031 is 130354661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166453031 is a prime.

It is a super-2 number, since 2×166453031² = 55413223058173922, which contains 22 as substring.

Together with 166453033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166452985 and 166453003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166453033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83226515 + 83226516.

It is an arithmetic number, because the mean of its divisors is an integer number (83226516).

Almost surely, 2^166453031 is an apocalyptic number.

166453031 is a deficient number, since it is larger than the sum of its proper divisors (1).

166453031 is an equidigital number, since it uses as much as digits as its factorization.

166453031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 166453031 is about 12901.6677604099. The cubic root of 166453031 is about 550.0859711341.

The spelling of 166453031 in words is "one hundred sixty-six million, four hundred fifty-three thousand, thirty-one".