5161018 has 4 divisors (see below), whose sum is σ = 7741530. Its totient is φ = 2580508.

The previous prime is 5161003. The next prime is 5161031. The reversal of 5161018 is 8101615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4652649 + 508369 = 2157^2 + 713^2 .

It is a super-2 number, since 2×5161018² = 53272213592648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5161018.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290253 + ... + 1290256.

Almost surely, 2^5161018 is an apocalyptic number.

5161018 is a deficient number, since it is larger than the sum of its proper divisors (2580512).

5161018 is a wasteful number, since it uses less digits than its factorization.

5161018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580511.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 5161018 is about 2271.7874020251. The cubic root of 5161018 is about 172.8138150892.

The spelling of 5161018 in words is "five million, one hundred sixty-one thousand, eighteen".