124001115 has 48 divisors (see below), whose sum is σ = 232992288. Its totient is φ = 56146944.

The previous prime is 124001083. The next prime is 124001117. The reversal of 124001115 is 511100421.

It is a happy number.

It is not a de Polignac number, because 124001115 - 2⁵ = 124001083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 124001094 and 124001103.

It is not an unprimeable number, because it can be changed into a prime (124001117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82309 + ... + 83801.

It is an arithmetic number, because the mean of its divisors is an integer number (4854006).

Almost surely, 2^124001115 is an apocalyptic number.

124001115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

124001115 is a deficient number, since it is larger than the sum of its proper divisors (108991173).

124001115 is a wasteful number, since it uses less digits than its factorization.

124001115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1621 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 124001115 is about 11135.5787905254. The cubic root of 124001115 is about 498.6645898682.

Adding to 124001115 its reverse (511100421), we get a palindrome (635101536).

The spelling of 124001115 in words is "one hundred twenty-four million, one thousand, one hundred fifteen".