124055405 has 8 divisors (see below), whose sum is σ = 148980600. Its totient is φ = 99168256.

The previous prime is 124055401. The next prime is 124055423. The reversal of 124055405 is 504550421.

It can be written as a sum of positive squares in 4 ways, for example, as 1532644 + 122522761 = 1238^2 + 11069^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 124055405 - 2² = 124055401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124055401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760 + ... + 15849.

It is an arithmetic number, because the mean of its divisors is an integer number (18622575).

Almost surely, 2^124055405 is an apocalyptic number.

It is an amenable number.

124055405 is a deficient number, since it is larger than the sum of its proper divisors (24925195).

124055405 is a wasteful number, since it uses less digits than its factorization.

124055405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19023.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 124055405 is about 11138.0162057702. The cubic root of 124055405 is about 498.7373541348.

The spelling of 124055405 in words is "one hundred twenty-four million, fifty-five thousand, four hundred five".