1245522726 has 96 divisors (see below), whose sum is σ = 3248593920. Its totient is φ = 337182912.

The previous prime is 1245522679. The next prime is 1245522763. The reversal of 1245522726 is 6272255421.

1245522726 is a `hidden beast` number, since 124 + 5 + 522 + 7 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313911 + ... + 317853.

It is an arithmetic number, because the mean of its divisors is an integer number (33839520).

Almost surely, 2^1245522726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245522726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624296960).

1245522726 is an abundant number, since it is smaller than the sum of its proper divisors (2003071194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245522726 is a wasteful number, since it uses less digits than its factorization.

1245522726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090 (or 4087 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 1245522726 is about 35291.9640428243. The cubic root of 1245522726 is about 1075.9296737986.

The spelling of 1245522726 in words is "one billion, two hundred forty-five million, five hundred twenty-two thousand, seven hundred twenty-six".