124161421 has 8 divisors (see below), whose sum is σ = 132768504. Its totient is φ = 115699200.

The previous prime is 124161419. The next prime is 124161437.

124161421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 99301225 + 24860196 = 9965^2 + 4986^2 .

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 124161421 - 2¹ = 124161419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124161392 and 124161401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124161461) 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, 34440 + ... + 37873.

It is an arithmetic number, because the mean of its divisors is an integer number (16596063).

Almost surely, 2^124161421 is an apocalyptic number.

It is an amenable number.

124161421 is a deficient number, since it is larger than the sum of its proper divisors (8607083).

124161421 is a wasteful number, since it uses less digits than its factorization.

124161421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72431.

The product of its digits is 384, while the sum is 22.

The square root of 124161421 is about 11142.7743852238. The cubic root of 124161421 is about 498.8793849870.

The spelling of 124161421 in words is "one hundred twenty-four million, one hundred sixty-one thousand, four hundred twenty-one".