124340142449 has 8 divisors (see below), whose sum is σ = 124810801128. Its totient is φ = 123869977600.

The previous prime is 124340142413. The next prime is 124340142457. The reversal of 124340142449 is 944241043421.

It can be written as a sum of positive squares in 4 ways, for example, as 66116865424 + 58223277025 = 257132^2 + 241295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124340142449 - 2³² = 120045175153 is a prime.

It is a super-2 number, since 2×124340142449² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124340142469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385019 + ... + 630015.

It is an arithmetic number, because the mean of its divisors is an integer number (15601350141).

Almost surely, 2^124340142449 is an apocalyptic number.

It is an amenable number.

124340142449 is a deficient number, since it is larger than the sum of its proper divisors (470658679).

124340142449 is a wasteful number, since it uses less digits than its factorization.

124340142449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246915.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 124340142449 in words is "one hundred twenty-four billion, three hundred forty million, one hundred forty-two thousand, four hundred forty-nine".