4166531 has 2 divisors, whose sum is σ = 4166532. Its totient is φ = 4166530.

The previous prime is 4166527. The next prime is 4166557. The reversal of 4166531 is 1356614.

It is an a-pointer prime, because the next prime (4166557) can be obtained adding 4166531 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4166531 - 2² = 4166527 is a prime.

It is a super-2 number, since 2×4166531² = 34719961147922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4166531.

It is not a weakly prime, because it can be changed into another prime (4166501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083265 + 2083266.

It is an arithmetic number, because the mean of its divisors is an integer number (2083266).

Almost surely, 2^4166531 is an apocalyptic number.

4166531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4166531 is an equidigital number, since it uses as much as digits as its factorization.

4166531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 4166531 is about 2041.2082206380. The cubic root of 4166531 is about 160.9131509523.

The spelling of 4166531 in words is "four million, one hundred sixty-six thousand, five hundred thirty-one".