3715540121 has 4 divisors (see below), whose sum is σ = 3767871744. Its totient is φ = 3663208500.

The previous prime is 3715540093. The next prime is 3715540133. The reversal of 3715540121 is 1210455173.

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 3715540121 - 2¹⁴ = 3715523737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3715540721) 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, 26165705 + ... + 26165846.

It is an arithmetic number, because the mean of its divisors is an integer number (941967936).

Almost surely, 2^3715540121 is an apocalyptic number.

It is an amenable number.

3715540121 is a deficient number, since it is larger than the sum of its proper divisors (52331623).

3715540121 is an equidigital number, since it uses as much as digits as its factorization.

3715540121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52331622.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 3715540121 is about 60955.2304646615. The cubic root of 3715540121 is about 1548.8427186687.

Adding to 3715540121 its reverse (1210455173), we get a palindrome (4925995294).

The spelling of 3715540121 in words is "three billion, seven hundred fifteen million, five hundred forty thousand, one hundred twenty-one".