49123 has 2 divisors, whose sum is σ = 49124. Its totient is φ = 49122.

The previous prime is 49121. The next prime is 49139. The reversal of 49123 is 32194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49123 - 2¹ = 49121 is a prime.

Together with 49121, it forms a pair of twin primes.

49123 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 49123.

It is not a weakly prime, because it can be changed into another prime (49121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24561 + 24562.

It is an arithmetic number, because the mean of its divisors is an integer number (24562).

2⁴⁹¹²³ is an apocalyptic number.

49123 is a deficient number, since it is larger than the sum of its proper divisors (1).

49123 is an equidigital number, since it uses as much as digits as its factorization.

49123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 49123 is about 221.6370907587. The cubic root of 49123 is about 36.6236501966.

The spelling of 49123 in words is "forty-nine thousand, one hundred twenty-three".