1206645146 has 8 divisors (see below), whose sum is σ = 2068534560. Its totient is φ = 517133628.

The previous prime is 1206645133. The next prime is 1206645157. The reversal of 1206645146 is 6415466021.

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

It is a super-2 number, since 2×1206645146² = 2911985016730722632, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43094456 + ... + 43094483.

It is an arithmetic number, because the mean of its divisors is an integer number (258566820).

Almost surely, 2^1206645146 is an apocalyptic number.

1206645146 is a deficient number, since it is larger than the sum of its proper divisors (861889414).

1206645146 is an equidigital number, since it uses as much as digits as its factorization.

1206645146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86188948.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1206645146 is about 34736.7981541189. The cubic root of 1206645146 is about 1064.6164932425.

The spelling of 1206645146 in words is "one billion, two hundred six million, six hundred forty-five thousand, one hundred forty-six".