5131745749 has 8 divisors (see below), whose sum is σ = 5851583640. Its totient is φ = 4458349056.

The previous prime is 5131745743. The next prime is 5131745761. The reversal of 5131745749 is 9475471315.

5131745749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1198198225 + 3933547524 = 34615^2 + 62718^2 .

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 5131745749 - 2³ = 5131745741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5131745699 and 5131745708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131745741) 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, 11610064 + ... + 11610505.

It is an arithmetic number, because the mean of its divisors is an integer number (731447955).

Almost surely, 2^5131745749 is an apocalyptic number.

It is an amenable number.

5131745749 is a deficient number, since it is larger than the sum of its proper divisors (719837891).

5131745749 is a wasteful number, since it uses less digits than its factorization.

5131745749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23220599.

The product of its digits is 529200, while the sum is 46.

The square root of 5131745749 is about 71636.2041777759. The cubic root of 5131745749 is about 1724.8647375841.

The spelling of 5131745749 in words is "five billion, one hundred thirty-one million, seven hundred forty-five thousand, seven hundred forty-nine".