1206537125 has 16 divisors (see below), whose sum is σ = 1509124656. Its totient is φ = 963072000.

The previous prime is 1206537121. The next prime is 1206537127. The reversal of 1206537125 is 5217356021.

It can be written as a sum of positive squares in 8 ways, for example, as 92179201 + 1114357924 = 9601^2 + 33382^2 .

It is not a de Polignac number, because 1206537125 - 2² = 1206537121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1206537091 and 1206537100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206537121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46565 + ... + 67685.

It is an arithmetic number, because the mean of its divisors is an integer number (94320291).

Almost surely, 2^1206537125 is an apocalyptic number.

It is an amenable number.

1206537125 is a deficient number, since it is larger than the sum of its proper divisors (302587531).

1206537125 is an equidigital number, since it uses as much as digits as its factorization.

1206537125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21593 (or 21583 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1206537125 is about 34735.2432696246. The cubic root of 1206537125 is about 1064.5847235129.

The spelling of 1206537125 in words is "one billion, two hundred six million, five hundred thirty-seven thousand, one hundred twenty-five".