3126731245 has 8 divisors (see below), whose sum is σ = 4093175520. Its totient is φ = 2273986320.

The previous prime is 3126731233. The next prime is 3126731249. The reversal of 3126731245 is 5421376213.

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

It is not a de Polignac number, because 3126731245 - 2¹⁹ = 3126206957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3126731245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126731249) 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, 28424775 + ... + 28424884.

It is an arithmetic number, because the mean of its divisors is an integer number (511646940).

Almost surely, 2^3126731245 is an apocalyptic number.

It is an amenable number.

3126731245 is a deficient number, since it is larger than the sum of its proper divisors (966444275).

3126731245 is a wasteful number, since it uses less digits than its factorization.

3126731245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56849675.

The product of its digits is 30240, while the sum is 34.

The square root of 3126731245 is about 55917.1820194831. The cubic root of 3126731245 is about 1462.2788027897.

The spelling of 3126731245 in words is "three billion, one hundred twenty-six million, seven hundred thirty-one thousand, two hundred forty-five".