5144978 has 4 divisors (see below), whose sum is σ = 7717470. Its totient is φ = 2572488.

The previous prime is 5144963. The next prime is 5144981. The reversal of 5144978 is 8794415.

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., 3193369 + 1951609 = 1787^2 + 1397^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286243 + ... + 1286246.

Almost surely, 2^5144978 is an apocalyptic number.

5144978 is a deficient number, since it is larger than the sum of its proper divisors (2572492).

5144978 is a wasteful number, since it uses less digits than its factorization.

5144978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572491.

The product of its digits is 40320, while the sum is 38.

The square root of 5144978 is about 2268.2543949037. The cubic root of 5144978 is about 172.6345991408.

The spelling of 5144978 in words is "five million, one hundred forty-four thousand, nine hundred seventy-eight".