5131172487 has 8 divisors (see below), whose sum is σ = 7818929536. Its totient is φ = 2932098552.

The previous prime is 5131172477. The next prime is 5131172503. The reversal of 5131172487 is 7842711315.

It is a happy number.

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

It is not a de Polignac number, because 5131172487 - 2²⁶ = 5064063623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131172467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122170753 + ... + 122170794.

It is an arithmetic number, because the mean of its divisors is an integer number (977366192).

Almost surely, 2^5131172487 is an apocalyptic number.

5131172487 is a deficient number, since it is larger than the sum of its proper divisors (2687757049).

5131172487 is a wasteful number, since it uses less digits than its factorization.

5131172487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244341557.

The product of its digits is 47040, while the sum is 39.

The square root of 5131172487 is about 71632.2028629582. The cubic root of 5131172487 is about 1724.8005075749.

The spelling of 5131172487 in words is "five billion, one hundred thirty-one million, one hundred seventy-two thousand, four hundred eighty-seven".