2420431157 has 2 divisors, whose sum is σ = 2420431158. Its totient is φ = 2420431156.

The previous prime is 2420431087. The next prime is 2420431159. The reversal of 2420431157 is 7511340242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2419262596 + 1168561 = 49186^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420431157 - 2²⁸ = 2151995701 is a prime.

Together with 2420431159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420431159) 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, 1210215578 + 1210215579.

It is an arithmetic number, because the mean of its divisors is an integer number (1210215579).

Almost surely, 2^2420431157 is an apocalyptic number.

It is an amenable number.

2420431157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420431157 is an equidigital number, since it uses as much as digits as its factorization.

2420431157 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 2420431157 is about 49197.8775660089. The cubic root of 2420431157 is about 1342.6544170304.

Adding to 2420431157 its reverse (7511340242), we get a palindrome (9931771399).

The spelling of 2420431157 in words is "two billion, four hundred twenty million, four hundred thirty-one thousand, one hundred fifty-seven".