124406121 has 16 divisors (see below), whose sum is σ = 189834624. Its totient is φ = 70990464.

The previous prime is 124406083. The next prime is 124406123. The reversal of 124406121 is 121604421.

It is a happy number.

It is not a de Polignac number, because 124406121 - 2¹⁸ = 124143977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (124406123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13021 + ... + 20453.

It is an arithmetic number, because the mean of its divisors is an integer number (11864664).

Almost surely, 2^124406121 is an apocalyptic number.

It is an amenable number.

124406121 is a deficient number, since it is larger than the sum of its proper divisors (65428503).

124406121 is an equidigital number, since it uses as much as digits as its factorization.

124406121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 124406121 is about 11153.7491902947. The cubic root of 124406121 is about 499.2069039959.

The spelling of 124406121 in words is "one hundred twenty-four million, four hundred six thousand, one hundred twenty-one".