124400032157 has 2 divisors, whose sum is σ = 124400032158. Its totient is φ = 124400032156.

The previous prime is 124400032093. The next prime is 124400032177. The reversal of 124400032157 is 751230004421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88943518756 + 35456513401 = 298234^2 + 188299^2 .

It is a cyclic number.

It is not a de Polignac number, because 124400032157 - 2⁶ = 124400032093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124400032177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62200016078 + 62200016079.

It is an arithmetic number, because the mean of its divisors is an integer number (62200016079).

Almost surely, 2^124400032157 is an apocalyptic number.

It is an amenable number.

124400032157 is a deficient number, since it is larger than the sum of its proper divisors (1).

124400032157 is an equidigital number, since it uses as much as digits as its factorization.

124400032157 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.

Adding to 124400032157 its reverse (751230004421), we get a palindrome (875630036578).

The spelling of 124400032157 in words is "one hundred twenty-four billion, four hundred million, thirty-two thousand, one hundred fifty-seven".