124508419897 has 2 divisors, whose sum is σ = 124508419898. Its totient is φ = 124508419896.

The previous prime is 124508419879. The next prime is 124508419901. The reversal of 124508419897 is 798914805421.

Together with previous prime (124508419879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87270613056 + 37237806841 = 295416^2 + 192971^2 .

It is an emirp because it is prime and its reverse (798914805421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124508419897 - 2¹¹ = 124508417849 is a prime.

It is not a weakly prime, because it can be changed into another prime (124508419297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62254209948 + 62254209949.

It is an arithmetic number, because the mean of its divisors is an integer number (62254209949).

Almost surely, 2^124508419897 is an apocalyptic number.

It is an amenable number.

124508419897 is a deficient number, since it is larger than the sum of its proper divisors (1).

124508419897 is an equidigital number, since it uses as much as digits as its factorization.

124508419897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 58.

The spelling of 124508419897 in words is "one hundred twenty-four billion, five hundred eight million, four hundred nineteen thousand, eight hundred ninety-seven".