5151979 has 4 divisors (see below), whose sum is σ = 5887984. Its totient is φ = 4415976.

The previous prime is 5151967. The next prime is 5151989. The reversal of 5151979 is 9791515.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9791515 = 5 ⋅1958303.

It is a cyclic number.

It is not a de Polignac number, because 5151979 - 2⁵ = 5151947 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151919) 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, 367992 + ... + 368005.

It is an arithmetic number, because the mean of its divisors is an integer number (1471996).

Almost surely, 2^5151979 is an apocalyptic number.

5151979 is a deficient number, since it is larger than the sum of its proper divisors (736005).

5151979 is an equidigital number, since it uses as much as digits as its factorization.

5151979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736004.

The product of its digits is 14175, while the sum is 37.

The square root of 5151979 is about 2269.7971274984. The cubic root of 5151979 is about 172.7128675051.

The spelling of 5151979 in words is "five million, one hundred fifty-one thousand, nine hundred seventy-nine".