4165531 has 8 divisors (see below), whose sum is σ = 4334400. Its totient is φ = 3998400.

The previous prime is 4165523. The next prime is 4165547. The reversal of 4165531 is 1355614.

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 4165531 - 2³ = 4165523 is a prime.

It is a super-3 number, since 3×4165531³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4165496 and 4165505.

It is not an unprimeable number, because it can be changed into a prime (4165331) 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, 6631 + ... + 7231.

It is an arithmetic number, because the mean of its divisors is an integer number (541800).

Almost surely, 2^4165531 is an apocalyptic number.

4165531 is a deficient number, since it is larger than the sum of its proper divisors (168869).

4165531 is a wasteful number, since it uses less digits than its factorization.

4165531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

The product of its digits is 1800, while the sum is 25.

The square root of 4165531 is about 2040.9632529764. The cubic root of 4165531 is about 160.9002764510.

The spelling of 4165531 in words is "four million, one hundred sixty-five thousand, five hundred thirty-one".