2400124157 has 2 divisors, whose sum is σ = 2400124158. Its totient is φ = 2400124156.

The previous prime is 2400124121. The next prime is 2400124159. The reversal of 2400124157 is 7514210042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1987465561 + 412658596 = 44581^2 + 20314^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400124157 - 2⁶ = 2400124093 is a prime.

Together with 2400124159, 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 (2400124159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200062078 + 1200062079.

It is an arithmetic number, because the mean of its divisors is an integer number (1200062079).

Almost surely, 2^2400124157 is an apocalyptic number.

It is an amenable number.

2400124157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400124157 is an equidigital number, since it uses as much as digits as its factorization.

2400124157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2400124157 is about 48991.0620113506. The cubic root of 2400124157 is about 1338.8889872070. Note that the first 3 decimals are identical.

Adding to 2400124157 its reverse (7514210042), we get a palindrome (9914334199).

The spelling of 2400124157 in words is "two billion, four hundred million, one hundred twenty-four thousand, one hundred fifty-seven".