541156531 has 2 divisors, whose sum is σ = 541156532. Its totient is φ = 541156530.

The previous prime is 541156513. The next prime is 541156571. The reversal of 541156531 is 135651145.

It is a happy number.

Together with previous prime (541156513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 541156531 - 2¹¹ = 541154483 is a prime.

It is a super-2 number, since 2×541156531² = 585700782087907922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 541156493 and 541156502.

It is not a weakly prime, because it can be changed into another prime (541156571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270578265 + 270578266.

It is an arithmetic number, because the mean of its divisors is an integer number (270578266).

Almost surely, 2^541156531 is an apocalyptic number.

541156531 is a deficient number, since it is larger than the sum of its proper divisors (1).

541156531 is an equidigital number, since it uses as much as digits as its factorization.

541156531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 31.

The square root of 541156531 is about 23262.7713525281. The cubic root of 541156531 is about 814.9062237944.

The spelling of 541156531 in words is "five hundred forty-one million, one hundred fifty-six thousand, five hundred thirty-one".