124181421 has 32 divisors (see below), whose sum is σ = 207153408. Its totient is φ = 64419840.

The previous prime is 124181389. The next prime is 124181459.

124181421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124181421 - 2⁵ = 124181389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124181391 and 124181400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124181461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12925 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (6473544).

Almost surely, 2^124181421 is an apocalyptic number.

It is an amenable number.

124181421 is a deficient number, since it is larger than the sum of its proper divisors (82971987).

124181421 is a wasteful number, since it uses less digits than its factorization.

124181421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7541.

The product of its digits is 512, while the sum is 24.

The square root of 124181421 is about 11143.6717916493. The cubic root of 124181421 is about 498.9061701508.

The spelling of 124181421 in words is "one hundred twenty-four million, one hundred eighty-one thousand, four hundred twenty-one".