124961249 has 4 divisors (see below), whose sum is σ = 142812864. Its totient is φ = 107109636.

The previous prime is 124961219. The next prime is 124961273. The reversal of 124961249 is 942169421.

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 an emirpimes, since its reverse is a distinct semiprime: 942169421 = 1439 ⋅654739.

It is a cyclic number.

It is not a de Polignac number, because 124961249 - 2⁸ = 124960993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124961209) 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, 8925797 + ... + 8925810.

It is an arithmetic number, because the mean of its divisors is an integer number (35703216).

Almost surely, 2^124961249 is an apocalyptic number.

It is an amenable number.

124961249 is a deficient number, since it is larger than the sum of its proper divisors (17851615).

124961249 is an equidigital number, since it uses as much as digits as its factorization.

124961249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17851614.

The product of its digits is 31104, while the sum is 38.

The square root of 124961249 is about 11178.6067557634. The cubic root of 124961249 is about 499.9483266599.

The spelling of 124961249 in words is "one hundred twenty-four million, nine hundred sixty-one thousand, two hundred forty-nine".