2447942131 has 4 divisors (see below), whose sum is σ = 2448046264. Its totient is φ = 2447838000.

The previous prime is 2447942129. The next prime is 2447942177. The reversal of 2447942131 is 1312497442.

2447942131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1312497442 = 2 ⋅656248721.

It is a cyclic number.

It is not a de Polignac number, because 2447942131 - 2¹ = 2447942129 is a prime.

It is a super-2 number, since 2×2447942131² = 11984841353449642322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2447942531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711 + ... + 69991.

It is an arithmetic number, because the mean of its divisors is an integer number (612011566).

Almost surely, 2^2447942131 is an apocalyptic number.

2447942131 is a deficient number, since it is larger than the sum of its proper divisors (104133).

2447942131 is an equidigital number, since it uses as much as digits as its factorization.

2447942131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104132.

The product of its digits is 48384, while the sum is 37.

The square root of 2447942131 is about 49476.6827000356. The cubic root of 2447942131 is about 1347.7222002584.

The spelling of 2447942131 in words is "two billion, four hundred forty-seven million, nine hundred forty-two thousand, one hundred thirty-one".