124545421 has 24 divisors (see below), whose sum is σ = 168503552. Its totient is φ = 89575200.

The previous prime is 124545419. The next prime is 124545433.

124545421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124545421 - 2¹ = 124545419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124545421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124545461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5356 + ... + 16666.

Almost surely, 2^124545421 is an apocalyptic number.

124545421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124545421 is a deficient number, since it is larger than the sum of its proper divisors (43958131).

124545421 is a wasteful number, since it uses less digits than its factorization.

124545421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353 (or 11342 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 124545421 is about 11159.9919802839. The cubic root of 124545421 is about 499.3931584513.

It can be divided in two parts, 124 and 545421, that added together give a palindrome (545545).

The spelling of 124545421 in words is "one hundred twenty-four million, five hundred forty-five thousand, four hundred twenty-one".