124641772501 has 2 divisors, whose sum is σ = 124641772502. Its totient is φ = 124641772500.

The previous prime is 124641772481. The next prime is 124641772537. The reversal of 124641772501 is 105277146421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73915471876 + 50726300625 = 271874^2 + 225225^2 .

It is a cyclic number.

It is not a de Polignac number, because 124641772501 - 2⁷ = 124641772373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124641722501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62320886250 + 62320886251.

It is an arithmetic number, because the mean of its divisors is an integer number (62320886251).

Almost surely, 2^124641772501 is an apocalyptic number.

It is an amenable number.

124641772501 is a deficient number, since it is larger than the sum of its proper divisors (1).

124641772501 is an equidigital number, since it uses as much as digits as its factorization.

124641772501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 124641772501 in words is "one hundred twenty-four billion, six hundred forty-one million, seven hundred seventy-two thousand, five hundred one".