124740813761 has 2 divisors, whose sum is σ = 124740813762. Its totient is φ = 124740813760.

The previous prime is 124740813719. The next prime is 124740813773. The reversal of 124740813761 is 167318047421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123229081600 + 1511732161 = 351040^2 + 38881^2 .

It is a cyclic number.

It is not a de Polignac number, because 124740813761 - 2¹⁰ = 124740812737 is a prime.

It is not a weakly prime, because it can be changed into another prime (124740813781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62370406880 + 62370406881.

It is an arithmetic number, because the mean of its divisors is an integer number (62370406881).

Almost surely, 2^124740813761 is an apocalyptic number.

It is an amenable number.

124740813761 is a deficient number, since it is larger than the sum of its proper divisors (1).

124740813761 is an equidigital number, since it uses as much as digits as its factorization.

124740813761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 124740813761 in words is "one hundred twenty-four billion, seven hundred forty million, eight hundred thirteen thousand, seven hundred sixty-one".