4155531 has 12 divisors (see below), whose sum is σ = 5887032. Its totient is φ = 2606848.

The previous prime is 4155523. The next prime is 4155533. The reversal of 4155531 is 1355514.

It is not a de Polignac number, because 4155531 - 2³ = 4155523 is a prime.

It is a super-2 number, since 2×4155531² = 34536875783922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4155533) 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 in 11 ways as a sum of consecutive naturals, for example, 1530 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (490586).

Almost surely, 2^4155531 is an apocalyptic number.

4155531 is a deficient number, since it is larger than the sum of its proper divisors (1731501).

4155531 is a wasteful number, since it uses less digits than its factorization.

4155531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830 (or 4813 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 4155531 is about 2038.5119572865. The cubic root of 4155531 is about 160.7714179663.

The spelling of 4155531 in words is "four million, one hundred fifty-five thousand, five hundred thirty-one".