5144121386 has 4 divisors (see below), whose sum is σ = 7716182082. Its totient is φ = 2572060692.

The previous prime is 5144121383. The next prime is 5144121391. The reversal of 5144121386 is 6831214415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6831214415 = 5 ⋅1366242883.

It can be written as a sum of positive squares in only one way, i.e., 4966725625 + 177395761 = 70475^2 + 13319^2 .

It is not an unprimeable number, because it can be changed into a prime (5144121383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286030345 + ... + 1286030348.

Almost surely, 2^5144121386 is an apocalyptic number.

5144121386 is a deficient number, since it is larger than the sum of its proper divisors (2572060696).

5144121386 is a wasteful number, since it uses less digits than its factorization.

5144121386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572060695.

The product of its digits is 23040, while the sum is 35.

The square root of 5144121386 is about 71722.5305326018. The cubic root of 5144121386 is about 1726.2501766657.

It can be divided in two parts, 51441 and 21386, that added together give a palindrome (72827).

The spelling of 5144121386 in words is "five billion, one hundred forty-four million, one hundred twenty-one thousand, three hundred eighty-six".