124705245 has 24 divisors (see below), whose sum is σ = 232105824. Its totient is φ = 57007776.

The previous prime is 124705223. The next prime is 124705247. The reversal of 124705245 is 542507421.

It is not a de Polignac number, because 124705245 - 2⁸ = 124704989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124705247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84099 + ... + 85568.

It is an arithmetic number, because the mean of its divisors is an integer number (9671076).

Almost surely, 2^124705245 is an apocalyptic number.

124705245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124705245 is a deficient number, since it is larger than the sum of its proper divisors (107400579).

124705245 is a wasteful number, since it uses less digits than its factorization.

124705245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169689 (or 169682 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 124705245 is about 11167.1502631602. The cubic root of 124705245 is about 499.6066840195.

The spelling of 124705245 in words is "one hundred twenty-four million, seven hundred five thousand, two hundred forty-five".