124249491 has 8 divisors (see below), whose sum is σ = 184073360. Its totient is φ = 82832976.

The previous prime is 124249483. The next prime is 124249513. The reversal of 124249491 is 194942421.

124249491 is a `hidden beast` number, since 124 + 2 + 49 + 491 = 666.

It is not a de Polignac number, because 124249491 - 2³ = 124249483 is a prime.

It is a super-3 number, since 3×124249491³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124249471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300890 + ... + 2300943.

It is an arithmetic number, because the mean of its divisors is an integer number (23009170).

Almost surely, 2^124249491 is an apocalyptic number.

124249491 is a deficient number, since it is larger than the sum of its proper divisors (59823869).

124249491 is an equidigital number, since it uses as much as digits as its factorization.

124249491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601842 (or 4601836 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 124249491 is about 11146.7255730102. The cubic root of 124249491 is about 498.9973119106.

The spelling of 124249491 in words is "one hundred twenty-four million, two hundred forty-nine thousand, four hundred ninety-one".