124121408 has 14 divisors (see below), whose sum is σ = 246303546. Its totient is φ = 62060672.

The previous prime is 124121399. The next prime is 124121429. The reversal of 124121408 is 804121421.

It can be written as a sum of positive squares in only one way, i.e., 119421184 + 4700224 = 10928^2 + 2168^2 .

It is a super-2 number, since 2×124121408² = 30812247847804928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 969635 + ... + 969762.

Almost surely, 2^124121408 is an apocalyptic number.

It is an amenable number.

124121408 is a deficient number, since it is larger than the sum of its proper divisors (122182138).

124121408 is an equidigital number, since it uses as much as digits as its factorization.

124121408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939409 (or 1939399 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 124121408 is about 11140.9787720828. The cubic root of 124121408 is about 498.8257886139.

Adding to 124121408 its reverse (804121421), we get a palindrome (928242829).

The spelling of 124121408 in words is "one hundred twenty-four million, one hundred twenty-one thousand, four hundred eight".