124432649 has 12 divisors (see below), whose sum is σ = 141493380. Its totient is φ = 109216800.

The previous prime is 124432621. The next prime is 124432699. The reversal of 124432649 is 946234421.

It can be written as a sum of positive squares in 2 ways, for example, as 57274624 + 67158025 = 7568^2 + 8195^2 .

It is not a de Polignac number, because 124432649 - 2¹² = 124428553 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 (124432699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14222 + ... + 21239.

It is an arithmetic number, because the mean of its divisors is an integer number (11791115).

Almost surely, 2^124432649 is an apocalyptic number.

It is an amenable number.

124432649 is a deficient number, since it is larger than the sum of its proper divisors (17060731).

124432649 is a wasteful number, since it uses less digits than its factorization.

124432649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35512 (or 35501 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 124432649 is about 11154.9383234512. The cubic root of 124432649 is about 499.2423846177.

The spelling of 124432649 in words is "one hundred twenty-four million, four hundred thirty-two thousand, six hundred forty-nine".