5671615121 has 4 divisors (see below), whose sum is σ = 5970121200. Its totient is φ = 5373109044.

The previous prime is 5671615097. The next prime is 5671615127. The reversal of 5671615121 is 1215161765.

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 5671615121 - 2¹⁰ = 5671614097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5671615127) 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, 149253011 + ... + 149253048.

It is an arithmetic number, because the mean of its divisors is an integer number (1492530300).

Almost surely, 2^5671615121 is an apocalyptic number.

It is an amenable number.

5671615121 is a deficient number, since it is larger than the sum of its proper divisors (298506079).

5671615121 is a wasteful number, since it uses less digits than its factorization.

5671615121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298506078.

The product of its digits is 12600, while the sum is 35.

The square root of 5671615121 is about 75310.1262845841. The cubic root of 5671615121 is about 1783.3458846255.

Adding to 5671615121 its reverse (1215161765), we get a palindrome (6886776886).

The spelling of 5671615121 in words is "five billion, six hundred seventy-one million, six hundred fifteen thousand, one hundred twenty-one".