3654113521 has 2 divisors, whose sum is σ = 3654113522. Its totient is φ = 3654113520.

The previous prime is 3654113513. The next prime is 3654113527. The reversal of 3654113521 is 1253114563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3471566400 + 182547121 = 58920^2 + 13511^2 .

It is a cyclic number.

It is not a de Polignac number, because 3654113521 - 2³ = 3654113513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3654113527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827056760 + 1827056761.

It is an arithmetic number, because the mean of its divisors is an integer number (1827056761).

Almost surely, 2^3654113521 is an apocalyptic number.

It is an amenable number.

3654113521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3654113521 is an equidigital number, since it uses as much as digits as its factorization.

3654113521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 3654113521 is about 60449.2640236422. The cubic root of 3654113521 is about 1540.2599101712.

The spelling of 3654113521 in words is "three billion, six hundred fifty-four million, one hundred thirteen thousand, five hundred twenty-one".