5161210321 has 8 divisors (see below), whose sum is σ = 5313645920. Its totient is φ = 5010247872.

The previous prime is 5161210309. The next prime is 5161210349. The reversal of 5161210321 is 1230121615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161210321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5161210292 and 5161210301.

It is not an unprimeable number, because it can be changed into a prime (5161210361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361176 + ... + 375193.

It is an arithmetic number, because the mean of its divisors is an integer number (664205740).

Almost surely, 2^5161210321 is an apocalyptic number.

It is an amenable number.

5161210321 is a deficient number, since it is larger than the sum of its proper divisors (152435599).

5161210321 is a wasteful number, since it uses less digits than its factorization.

5161210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736575.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 5161210321 is about 71841.5640211152. The cubic root of 5161210321 is about 1728.1596164973.

Adding to 5161210321 its reverse (1230121615), we get a palindrome (6391331936).

The spelling of 5161210321 in words is "five billion, one hundred sixty-one million, two hundred ten thousand, three hundred twenty-one".