4045531 has 16 divisors (see below), whose sum is σ = 4845568. Its totient is φ = 3304800.

The previous prime is 4045523. The next prime is 4045549. The reversal of 4045531 is 1355404.

It is a cyclic number.

It is not a de Polignac number, because 4045531 - 2³ = 4045523 is a prime.

It is a super-2 number, since 2×4045531² = 32732642143922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4045501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22261 + ... + 22441.

It is an arithmetic number, because the mean of its divisors is an integer number (302848).

Almost surely, 2^4045531 is an apocalyptic number.

4045531 is a deficient number, since it is larger than the sum of its proper divisors (800037).

4045531 is a wasteful number, since it uses less digits than its factorization.

4045531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 4045531 is about 2011.3505413030. The cubic root of 4045531 is about 159.3401339083.

The spelling of 4045531 in words is "four million, forty-five thousand, five hundred thirty-one".