4061531 has 4 divisors (see below), whose sum is σ = 4065600. Its totient is φ = 4057464.

The previous prime is 4061489. The next prime is 4061543. The reversal of 4061531 is 1351604.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4061531 - 2⁶ = 4061467 is a prime.

It is a super-2 number, since 2×4061531² = 32992068127922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4061581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605 + ... + 2913.

It is an arithmetic number, because the mean of its divisors is an integer number (1016400).

Almost surely, 2^4061531 is an apocalyptic number.

4061531 is a deficient number, since it is larger than the sum of its proper divisors (4069).

4061531 is a wasteful number, since it uses less digits than its factorization.

4061531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 4061531 is about 2015.3240434233. The cubic root of 4061531 is about 159.5499200080.

The spelling of 4061531 in words is "four million, sixty-one thousand, five hundred thirty-one".