3615040121 has 12 divisors (see below), whose sum is σ = 4587546960. Its totient is φ = 2816913960.

The previous prime is 3615040103. The next prime is 3615040127. The reversal of 3615040121 is 1210405163.

It is a de Polignac number, because none of the positive numbers 2^k-3615040121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3615040127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3352931 + ... + 3354008.

It is an arithmetic number, because the mean of its divisors is an integer number (382295580).

Almost surely, 2^3615040121 is an apocalyptic number.

It is an amenable number.

3615040121 is a deficient number, since it is larger than the sum of its proper divisors (972506839).

3615040121 is a wasteful number, since it uses less digits than its factorization.

3615040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706964 (or 6706957 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 3615040121 is about 60125.2037085946. The cubic root of 3615040121 is about 1534.7502302388.

Adding to 3615040121 its reverse (1210405163), we get a palindrome (4825445284).

The spelling of 3615040121 in words is "three billion, six hundred fifteen million, forty thousand, one hundred twenty-one".