124520124154249 has 2 divisors, whose sum is σ = 124520124154250. Its totient is φ = 124520124154248.

The previous prime is 124520124154147. The next prime is 124520124154267. The reversal of 124520124154249 is 942451421025421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62486542854649 + 62033581299600 = 7904843^2 + 7876140^2 .

It is a cyclic number.

It is not a de Polignac number, because 124520124154249 - 2¹⁷ = 124520124023177 is a prime.

It is a super-2 number, since 2×124520124154249² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124520124154199 and 124520124154208.

It is not a weakly prime, because it can be changed into another prime (124520124154649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62260062077124 + 62260062077125.

It is an arithmetic number, because the mean of its divisors is an integer number (62260062077125).

Almost surely, 2^{124520124154249} is an apocalyptic number.

It is an amenable number.

124520124154249 is a deficient number, since it is larger than the sum of its proper divisors (1).

124520124154249 is an equidigital number, since it uses as much as digits as its factorization.

124520124154249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 124520124154249 in words is "one hundred twenty-four trillion, five hundred twenty billion, one hundred twenty-four million, one hundred fifty-four thousand, two hundred forty-nine".