124905605 has 8 divisors (see below), whose sum is σ = 163512864. Its totient is φ = 90840400.

The previous prime is 124905593. The next prime is 124905611. The reversal of 124905605 is 506509421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124905605 - 2¹⁰ = 124904581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135451 + ... + 1135560.

It is an arithmetic number, because the mean of its divisors is an integer number (20439108).

Almost surely, 2^124905605 is an apocalyptic number.

It is an amenable number.

124905605 is a deficient number, since it is larger than the sum of its proper divisors (38607259).

124905605 is a wasteful number, since it uses less digits than its factorization.

124905605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271027.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 124905605 is about 11176.1176174913. The cubic root of 124905605 is about 499.8741083052.

The spelling of 124905605 in words is "one hundred twenty-four million, nine hundred five thousand, six hundred five".