5151994 has 8 divisors (see below), whose sum is σ = 7799220. Its totient is φ = 2552256.

The previous prime is 5151989. The next prime is 5151997. The reversal of 5151994 is 4991515.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4566769 + 585225 = 2137^2 + 765^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5151997) 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, 11599 + ... + 12034.

Almost surely, 2^5151994 is an apocalyptic number.

5151994 is a deficient number, since it is larger than the sum of its proper divisors (2647226).

5151994 is a wasteful number, since it uses less digits than its factorization.

5151994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23744.

The product of its digits is 8100, while the sum is 34.

The square root of 5151994 is about 2269.8004317561. The cubic root of 5151994 is about 172.7130351229.

The spelling of 5151994 in words is "five million, one hundred fifty-one thousand, nine hundred ninety-four".