5121287437 has 8 divisors (see below), whose sum is σ = 5860637696. Its totient is φ = 4383871632.

The previous prime is 5121287377. The next prime is 5121287441. The reversal of 5121287437 is 7347821215.

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

It is not a de Polignac number, because 5121287437 - 2⁷ = 5121287309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5121287437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121287447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477933 + ... + 488530.

It is an arithmetic number, because the mean of its divisors is an integer number (732579712).

Almost surely, 2^5121287437 is an apocalyptic number.

It is an amenable number.

5121287437 is a deficient number, since it is larger than the sum of its proper divisors (739350259).

5121287437 is an equidigital number, since it uses as much as digits as its factorization.

5121287437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967227.

The product of its digits is 94080, while the sum is 40.

The square root of 5121287437 is about 71563.1709540599. The cubic root of 5121287437 is about 1723.6922034048.

The spelling of 5121287437 in words is "five billion, one hundred twenty-one million, two hundred eighty-seven thousand, four hundred thirty-seven".