124228145 has 4 divisors (see below), whose sum is σ = 149073780. Its totient is φ = 99382512.

The previous prime is 124228123. The next prime is 124228151. The reversal of 124228145 is 541822421.

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 53129521 + 71098624 = 7289^2 + 8432^2 .

It is a cyclic number.

It is not a de Polignac number, because 124228145 - 2¹⁰ = 124227121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12422810 + ... + 12422819.

It is an arithmetic number, because the mean of its divisors is an integer number (37268445).

Almost surely, 2^124228145 is an apocalyptic number.

It is an amenable number.

124228145 is a deficient number, since it is larger than the sum of its proper divisors (24845635).

124228145 is an equidigital number, since it uses as much as digits as its factorization.

124228145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24845634.

The product of its digits is 5120, while the sum is 29.

The square root of 124228145 is about 11145.7680309613. The cubic root of 124228145 is about 498.9687344451.

The spelling of 124228145 in words is "one hundred twenty-four million, two hundred twenty-eight thousand, one hundred forty-five".