7236531397 has 2 divisors, whose sum is σ = 7236531398. Its totient is φ = 7236531396.

The previous prime is 7236531383. The next prime is 7236531427. The reversal of 7236531397 is 7931356327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4490876196 + 2745655201 = 67014^2 + 52399^2 .

It is an emirp because it is prime and its reverse (7931356327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7236531397 - 2¹⁵ = 7236498629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7236531317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3618265698 + 3618265699.

It is an arithmetic number, because the mean of its divisors is an integer number (3618265699).

Almost surely, 2^7236531397 is an apocalyptic number.

It is an amenable number.

7236531397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7236531397 is an equidigital number, since it uses as much as digits as its factorization.

7236531397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 46.

The square root of 7236531397 is about 85067.8047030720. The cubic root of 7236531397 is about 1934.2390647121.

The spelling of 7236531397 in words is "seven billion, two hundred thirty-six million, five hundred thirty-one thousand, three hundred ninety-seven".