5209121037 has 4 divisors (see below), whose sum is σ = 6945494720. Its totient is φ = 3472747356.

The previous prime is 5209121023. The next prime is 5209121041. The reversal of 5209121037 is 7301219025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5209121037 - 2³² = 914153741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5209120995 and 5209121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209121077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868186837 + ... + 868186842.

It is an arithmetic number, because the mean of its divisors is an integer number (1736373680).

Almost surely, 2^5209121037 is an apocalyptic number.

It is an amenable number.

5209121037 is a deficient number, since it is larger than the sum of its proper divisors (1736373683).

5209121037 is a wasteful number, since it uses less digits than its factorization.

5209121037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736373682.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 5209121037 is about 72174.2408134647. The cubic root of 5209121037 is about 1733.4905675865.

The spelling of 5209121037 in words is "five billion, two hundred nine million, one hundred twenty-one thousand, thirty-seven".