7526145481 has 2 divisors, whose sum is σ = 7526145482. Its totient is φ = 7526145480.

The previous prime is 7526145467. The next prime is 7526145509. The reversal of 7526145481 is 1845416257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6202350025 + 1323795456 = 78755^2 + 36384^2 .

It is a cyclic number.

It is not a de Polignac number, because 7526145481 - 2⁵ = 7526145449 is a prime.

It is a super-2 number, since 2×7526145481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7526145401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3763072740 + 3763072741.

It is an arithmetic number, because the mean of its divisors is an integer number (3763072741).

Almost surely, 2^7526145481 is an apocalyptic number.

It is an amenable number.

7526145481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7526145481 is an equidigital number, since it uses as much as digits as its factorization.

7526145481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 43.

The square root of 7526145481 is about 86753.3600559656. The cubic root of 7526145481 is about 1959.7057625261.

The spelling of 7526145481 in words is "seven billion, five hundred twenty-six million, one hundred forty-five thousand, four hundred eighty-one".