1206436125 has 48 divisors (see below), whose sum is σ = 2036339136. Its totient is φ = 634319200.

The previous prime is 1206436109. The next prime is 1206436129. The reversal of 1206436125 is 5216346021.

It is not a de Polignac number, because 1206436125 - 2⁴ = 1206436109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1206436092 and 1206436101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206436129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2583142 + ... + 2583608.

It is an arithmetic number, because the mean of its divisors is an integer number (42423732).

Almost surely, 2^1206436125 is an apocalyptic number.

1206436125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206436125 is a deficient number, since it is larger than the sum of its proper divisors (829903011).

1206436125 is an frugal number, since it uses more digits than its factorization.

1206436125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1206436125 is about 34733.7893844020. The cubic root of 1206436125 is about 1064.5550169930. Note that the first 3 decimals are identical.

The spelling of 1206436125 in words is "one billion, two hundred six million, four hundred thirty-six thousand, one hundred twenty-five".