2315421047 has 2 divisors, whose sum is σ = 2315421048. Its totient is φ = 2315421046.

The previous prime is 2315421011. The next prime is 2315421071. The reversal of 2315421047 is 7401245132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315421047 is a prime.

It is a super-2 number, since 2×2315421047² = 10722349249781152418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315421007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157710523 + 1157710524.

It is an arithmetic number, because the mean of its divisors is an integer number (1157710524).

Almost surely, 2^2315421047 is an apocalyptic number.

2315421047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315421047 is an equidigital number, since it uses as much as digits as its factorization.

2315421047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2315421047 is about 48118.8221697082. The cubic root of 2315421047 is about 1322.9496799269.

Adding to 2315421047 its reverse (7401245132), we get a palindrome (9716666179).

The spelling of 2315421047 in words is "two billion, three hundred fifteen million, four hundred twenty-one thousand, forty-seven".