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: 162061421 = 199 ⋅814379.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-124160261 is a prime.
It is a Duffinian number.
It is a congruent number.
Almost surely, 2124160261 is an apocalyptic number.
It is an amenable number.
124160261 is an equidigital number, since it uses as much as digits as its factorization.
124160261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 519738.
The square root of 124160261 is about 11142.7223334336. The cubic root of 124160261 is about 498.8778313592.
The spelling of 124160261 in words is "one hundred twenty-four million, one hundred sixty thousand, two hundred sixty-one".