124813105 has 4 divisors (see below), whose sum is σ = 149775732. Its totient is φ = 99850480.

The previous prime is 124813103. The next prime is 124813121. The reversal of 124813105 is 501318421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81884401 + 42928704 = 9049^2 + 6552^2 .

It is not a de Polignac number, because 124813105 - 2¹ = 124813103 is a prime.

It is a super-2 number, since 2×124813105² = 31156622359482050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124813105.

It is not an unprimeable number, because it can be changed into a prime (124813103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12481306 + ... + 12481315.

It is an arithmetic number, because the mean of its divisors is an integer number (37443933).

Almost surely, 2^124813105 is an apocalyptic number.

It is an amenable number.

124813105 is a deficient number, since it is larger than the sum of its proper divisors (24962627).

124813105 is an equidigital number, since it uses as much as digits as its factorization.

124813105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24962626.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 124813105 is about 11171.9785624571. The cubic root of 124813105 is about 499.7506823688.

The spelling of 124813105 in words is "one hundred twenty-four million, eight hundred thirteen thousand, one hundred five".