124997 has 4 divisors (see below), whose sum is σ = 125760. Its totient is φ = 124236.

The previous prime is 124991. The next prime is 125003. The reversal of 124997 is 799421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 799421 = 7 ⋅114203.

It is an interprime number because it is at equal distance from previous prime (124991) and next prime (125003).

It is a cyclic number.

It is not a de Polignac number, because 124997 - 2⁴ = 124981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 124997.

It is not an unprimeable number, because it can be changed into a prime (124991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23 + ... + 500.

It is an arithmetic number, because the mean of its divisors is an integer number (31440).

2¹²⁴⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

124997 is a deficient number, since it is larger than the sum of its proper divisors (763).

124997 is an equidigital number, since it uses as much as digits as its factorization.

124997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762.

The product of its digits is 4536, while the sum is 32.

The square root of 124997 is about 353.5491479271. The cubic root of 124997 is about 49.9995999968. Note that the first 3 decimals are identical.

The spelling of 124997 in words is "one hundred twenty-four thousand, nine hundred ninety-seven".