124400001 has 16 divisors (see below), whose sum is σ = 182707200. Its totient is φ = 74659920.

The previous prime is 124399997. The next prime is 124400009. The reversal of 124400001 is 100004421.

It is not a de Polignac number, because 124400001 - 2² = 124399997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124400001.

It is not an unprimeable number, because it can be changed into a prime (124400009) 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, 14901 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (11419200).

Almost surely, 2^124400001 is an apocalyptic number.

124400001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124400001 is a deficient number, since it is larger than the sum of its proper divisors (58307199).

124400001 is a wasteful number, since it uses less digits than its factorization.

124400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36716.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 124400001 is about 11153.4748397080. The cubic root of 124400001 is about 499.1987179133.

Adding to 124400001 its reverse (100004421), we get a palindrome (224404422).

The spelling of 124400001 in words is "one hundred twenty-four million, four hundred thousand, one".