531162077 has 2 divisors, whose sum is σ = 531162078. Its totient is φ = 531162076.

The previous prime is 531162013. The next prime is 531162083. The reversal of 531162077 is 770261135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489028996 + 42133081 = 22114^2 + 6491^2 .

It is a cyclic number.

It is not a de Polignac number, because 531162077 - 2⁶ = 531162013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531162007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265581038 + 265581039.

It is an arithmetic number, because the mean of its divisors is an integer number (265581039).

Almost surely, 2^531162077 is an apocalyptic number.

It is an amenable number.

531162077 is a deficient number, since it is larger than the sum of its proper divisors (1).

531162077 is an equidigital number, since it uses as much as digits as its factorization.

531162077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 531162077 is about 23046.9537466451. The cubic root of 531162077 is about 809.8582676365.

The spelling of 531162077 in words is "five hundred thirty-one million, one hundred sixty-two thousand, seventy-seven".