124532381 has 2 divisors, whose sum is σ = 124532382. Its totient is φ = 124532380.

The previous prime is 124532377. The next prime is 124532437. The reversal of 124532381 is 183235421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106605625 + 17926756 = 10325^2 + 4234^2 .

It is an emirp because it is prime and its reverse (183235421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124532381 - 2² = 124532377 is a prime.

It is a super-2 number, since 2×124532381² = 31016627835058322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124532311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62266190 + 62266191.

It is an arithmetic number, because the mean of its divisors is an integer number (62266191).

Almost surely, 2^124532381 is an apocalyptic number.

It is an amenable number.

124532381 is a deficient number, since it is larger than the sum of its proper divisors (1).

124532381 is an equidigital number, since it uses as much as digits as its factorization.

124532381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 124532381 is about 11159.4077351802. The cubic root of 124532381 is about 499.3757288956.

The spelling of 124532381 in words is "one hundred twenty-four million, five hundred thirty-two thousand, three hundred eighty-one".