3621513541 has 4 divisors (see below), whose sum is σ = 3621989952. Its totient is φ = 3621037132.

The previous prime is 3621513499. The next prime is 3621513551. The reversal of 3621513541 is 1453151263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3621513541 - 2⁹ = 3621513029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621513551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226615 + ... + 242068.

It is an arithmetic number, because the mean of its divisors is an integer number (905497488).

Almost surely, 2^3621513541 is an apocalyptic number.

It is an amenable number.

3621513541 is a deficient number, since it is larger than the sum of its proper divisors (476411).

3621513541 is an equidigital number, since it uses as much as digits as its factorization.

3621513541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476410.

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

The square root of 3621513541 is about 60179.0124628180. The cubic root of 3621513541 is about 1535.6657718072.

The spelling of 3621513541 in words is "three billion, six hundred twenty-one million, five hundred thirteen thousand, five hundred forty-one".