2415421157 has 2 divisors, whose sum is σ = 2415421158. Its totient is φ = 2415421156.

The previous prime is 2415421147. The next prime is 2415421159. The reversal of 2415421157 is 7511245142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2273477761 + 141943396 = 47681^2 + 11914^2 .

It is a cyclic number.

It is not a de Polignac number, because 2415421157 - 2¹⁸ = 2415159013 is a prime.

Together with 2415421159, 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 (2415421159) 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 as a sum of consecutive naturals, namely, 1207710578 + 1207710579.

It is an arithmetic number, because the mean of its divisors is an integer number (1207710579).

Almost surely, 2^2415421157 is an apocalyptic number.

It is an amenable number.

2415421157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2415421157 is an equidigital number, since it uses as much as digits as its factorization.

2415421157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 32.

The square root of 2415421157 is about 49146.9343601409. The cubic root of 2415421157 is about 1341.7273996675.

Adding to 2415421157 its reverse (7511245142), we get a palindrome (9926666299).

The spelling of 2415421157 in words is "two billion, four hundred fifteen million, four hundred twenty-one thousand, one hundred fifty-seven".