124249487 has 4 divisors (see below), whose sum is σ = 124562856. Its totient is φ = 123936120.

The previous prime is 124249483. The next prime is 124249513. The reversal of 124249487 is 784942421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784942421 = 19 ⋅41312759.

It is a cyclic number.

It is not a de Polignac number, because 124249487 - 2² = 124249483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124249483) 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, 156089 + ... + 156882.

It is an arithmetic number, because the mean of its divisors is an integer number (31140714).

Almost surely, 2^124249487 is an apocalyptic number.

124249487 is a deficient number, since it is larger than the sum of its proper divisors (313369).

124249487 is an equidigital number, since it uses as much as digits as its factorization.

124249487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313368.

The product of its digits is 129024, while the sum is 41.

The square root of 124249487 is about 11146.7253935853. The cubic root of 124249487 is about 498.9973065559.

The spelling of 124249487 in words is "one hundred twenty-four million, two hundred forty-nine thousand, four hundred eighty-seven".