124040145 has 32 divisors (see below), whose sum is σ = 208272384. Its totient is φ = 62956800.

The previous prime is 124040141. The next prime is 124040153. The reversal of 124040145 is 541040421.

It is a happy number.

It is not a de Polignac number, because 124040145 - 2² = 124040141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124040141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26179 + ... + 30551.

It is an arithmetic number, because the mean of its divisors is an integer number (6508512).

Almost surely, 2^124040145 is an apocalyptic number.

124040145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124040145 is a deficient number, since it is larger than the sum of its proper divisors (84232239).

124040145 is a wasteful number, since it uses less digits than its factorization.

124040145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 124040145 is about 11137.3311435011. The cubic root of 124040145 is about 498.7169034765.

Adding to 124040145 its reverse (541040421), we get a palindrome (665080566).

The spelling of 124040145 in words is "one hundred twenty-four million, forty thousand, one hundred forty-five".