124919 has 2 divisors, whose sum is σ = 124920. Its totient is φ = 124918.

The previous prime is 124909. The next prime is 124951. The reversal of 124919 is 919421.

It is a weak prime.

It is an emirp because it is prime and its reverse (919421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124919 - 2¹² = 120823 is a prime.

It is a super-2 number, since 2×124919² = 31209513122, 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 (124909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62459 + 62460.

It is an arithmetic number, because the mean of its divisors is an integer number (62460).

2¹²⁴⁹¹⁹ is an apocalyptic number.

124919 is a deficient number, since it is larger than the sum of its proper divisors (1).

124919 is an equidigital number, since it uses as much as digits as its factorization.

124919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The square root of 124919 is about 353.4388207314. The cubic root of 124919 is about 49.9891976664.

The spelling of 124919 in words is "one hundred twenty-four thousand, nine hundred nineteen".