124543381 has 2 divisors, whose sum is σ = 124543382. Its totient is φ = 124543380.

The previous prime is 124543339. The next prime is 124543417. The reversal of 124543381 is 183345421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 40068900 = 9191^2 + 6330^2 .

It is a cyclic number.

It is not a de Polignac number, because 124543381 - 2¹³ = 124535189 is a prime.

It is a super-2 number, since 2×124543381² = 31022107501822322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124543981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62271690 + 62271691.

It is an arithmetic number, because the mean of its divisors is an integer number (62271691).

Almost surely, 2^124543381 is an apocalyptic number.

It is an amenable number.

124543381 is a deficient number, since it is larger than the sum of its proper divisors (1).

124543381 is an equidigital number, since it uses as much as digits as its factorization.

124543381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 124543381 is about 11159.9005819944. The cubic root of 124543381 is about 499.3904318219.

The spelling of 124543381 in words is "one hundred twenty-four million, five hundred forty-three thousand, three hundred eighty-one".