124540100545 has 12 divisors (see below), whose sum is σ = 173847814164. Its totient is φ = 85398925920.

The previous prime is 124540100543. The next prime is 124540100561. The reversal of 124540100545 is 545001045421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66227993104 + 58312107441 = 257348^2 + 241479^2 .

It is not a de Polignac number, because 124540100545 - 2¹ = 124540100543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124540100543) 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 in 11 ways as a sum of consecutive naturals, for example, 254163226 + ... + 254163715.

It is an arithmetic number, because the mean of its divisors is an integer number (14487317847).

Almost surely, 2^124540100545 is an apocalyptic number.

It is an amenable number.

124540100545 is a deficient number, since it is larger than the sum of its proper divisors (49307713619).

124540100545 is an equidigital number, since it uses as much as digits as its factorization.

124540100545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508326960 (or 508326953 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 124540100545 its reverse (545001045421), we get a palindrome (669541145966).

The spelling of 124540100545 in words is "one hundred twenty-four billion, five hundred forty million, one hundred thousand, five hundred forty-five".