531402077 has 2 divisors, whose sum is σ = 531402078. Its totient is φ = 531402076.

The previous prime is 531402059. The next prime is 531402161. The reversal of 531402077 is 770204135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348232921 + 183169156 = 18661^2 + 13534^2 .

It is a cyclic number.

It is not a de Polignac number, because 531402077 - 2¹⁴ = 531385693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531402007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265701038 + 265701039.

It is an arithmetic number, because the mean of its divisors is an integer number (265701039).

Almost surely, 2^531402077 is an apocalyptic number.

It is an amenable number.

531402077 is a deficient number, since it is larger than the sum of its proper divisors (1).

531402077 is an equidigital number, since it uses as much as digits as its factorization.

531402077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 531402077 is about 23052.1599204934. The cubic root of 531402077 is about 809.9802245845.

The spelling of 531402077 in words is "five hundred thirty-one million, four hundred two thousand, seventy-seven".