124591949 has 4 divisors (see below), whose sum is σ = 131149440. Its totient is φ = 118034460.

The previous prime is 124591931. The next prime is 124591967. The reversal of 124591949 is 949195421.

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: 949195421 = 73 ⋅13002677.

It is an interprime number because it is at equal distance from previous prime (124591931) and next prime (124591967).

It is a de Polignac number, because none of the positive numbers 2^k-124591949 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 (124591919) 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 3 ways as a sum of consecutive naturals, for example, 3278717 + ... + 3278754.

It is an arithmetic number, because the mean of its divisors is an integer number (32787360).

Almost surely, 2^124591949 is an apocalyptic number.

124591949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

124591949 is a deficient number, since it is larger than the sum of its proper divisors (6557491).

124591949 is an equidigital number, since it uses as much as digits as its factorization.

124591949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6557490.

The product of its digits is 116640, while the sum is 44.

The square root of 124591949 is about 11162.0763749403. The cubic root of 124591949 is about 499.4553389040.

The spelling of 124591949 in words is "one hundred twenty-four million, five hundred ninety-one thousand, nine hundred forty-nine".