2912738531 has 4 divisors (see below), whose sum is σ = 2991461232. Its totient is φ = 2834015832.

The previous prime is 2912738519. The next prime is 2912738539. The reversal of 2912738531 is 1358372192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2912738531 is a prime.

It is a super-2 number, since 2×2912738531² = 16968091499944075922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2912738539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39361295 + ... + 39361368.

It is an arithmetic number, because the mean of its divisors is an integer number (747865308).

Almost surely, 2^2912738531 is an apocalyptic number.

2912738531 is a deficient number, since it is larger than the sum of its proper divisors (78722701).

2912738531 is an equidigital number, since it uses as much as digits as its factorization.

2912738531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78722700.

The product of its digits is 90720, while the sum is 41.

The square root of 2912738531 is about 53969.7927641009. The cubic root of 2912738531 is about 1428.1281082188.

The spelling of 2912738531 in words is "two billion, nine hundred twelve million, seven hundred thirty-eight thousand, five hundred thirty-one".