124391005 has 32 divisors (see below), whose sum is σ = 164131200. Its totient is φ = 90139392.

The previous prime is 124390993. The next prime is 124391129. The reversal of 124391005 is 500193421.

It is a cyclic number.

It is not a de Polignac number, because 124391005 - 2¹⁵ = 124358237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448927 + ... + 449203.

It is an arithmetic number, because the mean of its divisors is an integer number (5129100).

Almost surely, 2^124391005 is an apocalyptic number.

It is an amenable number.

124391005 is a deficient number, since it is larger than the sum of its proper divisors (39740195).

124391005 is a wasteful number, since it uses less digits than its factorization.

124391005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 124391005 is about 11153.0715500260. The cubic root of 124391005 is about 499.1866844195.

The spelling of 124391005 in words is "one hundred twenty-four million, three hundred ninety-one thousand, five".