90325212437 has 2 divisors, whose sum is σ = 90325212438. Its totient is φ = 90325212436.

The previous prime is 90325212359. The next prime is 90325212443. The reversal of 90325212437 is 73421252309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87782430961 + 2542781476 = 296281^2 + 50426^2 .

It is a cyclic number.

It is not a de Polignac number, because 90325212437 - 2¹² = 90325208341 is a prime.

It is a super-3 number, since 3×90325212437³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90325212437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90325212037) 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, 45162606218 + 45162606219.

It is an arithmetic number, because the mean of its divisors is an integer number (45162606219).

Almost surely, 2^90325212437 is an apocalyptic number.

It is an amenable number.

90325212437 is a deficient number, since it is larger than the sum of its proper divisors (1).

90325212437 is an equidigital number, since it uses as much as digits as its factorization.

90325212437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 90325212437 in words is "ninety billion, three hundred twenty-five million, two hundred twelve thousand, four hundred thirty-seven".