124818401 has 4 divisors (see below), whose sum is σ = 130245312. Its totient is φ = 119391492.

The previous prime is 124818377. The next prime is 124818409. The reversal of 124818401 is 104818421.

124818401 = T₃₂₈₃ + T₃₂₈₄ + ... + T₃₃₀₅.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104818421 = 19 ⋅5516759.

It is a cyclic number.

It is not a de Polignac number, because 124818401 - 2¹⁴ = 124802017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124818409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713421 + ... + 2713466.

It is an arithmetic number, because the mean of its divisors is an integer number (32561328).

Almost surely, 2^124818401 is an apocalyptic number.

It is an amenable number.

124818401 is a deficient number, since it is larger than the sum of its proper divisors (5426911).

124818401 is an equidigital number, since it uses as much as digits as its factorization.

124818401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426910.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 124818401 is about 11172.2155815219. The cubic root of 124818401 is about 499.7577506495.

The spelling of 124818401 in words is "one hundred twenty-four million, eight hundred eighteen thousand, four hundred one".