5121731 has 8 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 4925128.

The previous prime is 5121713. The next prime is 5121737. The reversal of 5121731 is 1371215.

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

It is a cyclic number.

It is not a de Polignac number, because 5121731 - 2⁶ = 5121667 is a prime.

It is a super-2 number, since 2×5121731² = 52464256872722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5121737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850 + ... + 3696.

It is an arithmetic number, because the mean of its divisors is an integer number (665280).

Almost surely, 2^5121731 is an apocalyptic number.

5121731 is a deficient number, since it is larger than the sum of its proper divisors (200509).

5121731 is a wasteful number, since it uses less digits than its factorization.

5121731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953.

The product of its digits is 210, while the sum is 20.

The square root of 5121731 is about 2263.1241680473. The cubic root of 5121731 is about 172.3741965893.

Adding to 5121731 its reverse (1371215), we get a palindrome (6492946).

The spelling of 5121731 in words is "five million, one hundred twenty-one thousand, seven hundred thirty-one".