1012520437 has 2 divisors, whose sum is σ = 1012520438. Its totient is φ = 1012520436.

The previous prime is 1012520423. The next prime is 1012520479. The reversal of 1012520437 is 7340252101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 977875441 + 34644996 = 31271^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012520437 - 2²⁷ = 878302709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012521437) 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, 506260218 + 506260219.

It is an arithmetic number, because the mean of its divisors is an integer number (506260219).

Almost surely, 2^1012520437 is an apocalyptic number.

It is an amenable number.

1012520437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012520437 is an equidigital number, since it uses as much as digits as its factorization.

1012520437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1012520437 is about 31820.1262882472. The cubic root of 1012520437 is about 1004.1561812265.

Adding to 1012520437 its reverse (7340252101), we get a palindrome (8352772538).

The spelling of 1012520437 in words is "one billion, twelve million, five hundred twenty thousand, four hundred thirty-seven".