1206355125 has 32 divisors (see below), whose sum is σ = 2113038720. Its totient is φ = 609523200.

The previous prime is 1206355109. The next prime is 1206355133. The reversal of 1206355125 is 5215536021.

It is a happy number.

It is not a de Polignac number, because 1206355125 - 2⁴ = 1206355109 is a prime.

It is a super-2 number, since 2×1206355125² = 2910585375227531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1206355092 and 1206355101.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 77532 + ... + 91781.

It is an arithmetic number, because the mean of its divisors is an integer number (66032460).

Almost surely, 2^1206355125 is an apocalyptic number.

1206355125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206355125 is a deficient number, since it is larger than the sum of its proper divisors (906683595).

1206355125 is a wasteful number, since it uses less digits than its factorization.

1206355125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169350 (or 169340 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1206355125 is about 34732.6233532683. The cubic root of 1206355125 is about 1064.5311917542.

The spelling of 1206355125 in words is "one billion, two hundred six million, three hundred fifty-five thousand, one hundred twenty-five".