124521245 has 8 divisors (see below), whose sum is σ = 149490360. Its totient is φ = 99573760.

The previous prime is 124521239. The next prime is 124521259. The reversal of 124521245 is 542125421.

It can be written as a sum of positive squares in 4 ways, for example, as 25836889 + 98684356 = 5083^2 + 9934^2 .

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

It is not a de Polignac number, because 124521245 - 2⁶ = 124521181 is a prime.

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, 12905 + ... + 20385.

It is an arithmetic number, because the mean of its divisors is an integer number (18686295).

Almost surely, 2^124521245 is an apocalyptic number.

It is an amenable number.

124521245 is a deficient number, since it is larger than the sum of its proper divisors (24969115).

124521245 is an equidigital number, since it uses as much as digits as its factorization.

124521245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10815.

The product of its digits is 3200, while the sum is 26.

The square root of 124521245 is about 11158.9087728147. The cubic root of 124521245 is about 499.3608433056.

Adding to 124521245 its reverse (542125421), we get a palindrome (666646666).

The spelling of 124521245 in words is "one hundred twenty-four million, five hundred twenty-one thousand, two hundred forty-five".