1249382066 has 8 divisors (see below), whose sum is σ = 1878747804. Its totient is φ = 623132800.

The previous prime is 1249382063. The next prime is 1249382081. The reversal of 1249382066 is 6602839421.

It can be written as a sum of positive squares in 2 ways, for example, as 1247573041 + 1809025 = 35321^2 + 1345^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1249382063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778115 + ... + 779718.

Almost surely, 2^1249382066 is an apocalyptic number.

1249382066 is a deficient number, since it is larger than the sum of its proper divisors (629365738).

1249382066 is a wasteful number, since it uses less digits than its factorization.

1249382066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558236.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1249382066 is about 35346.5990726123. The cubic root of 1249382066 is about 1077.0398092985.

The spelling of 1249382066 in words is "one billion, two hundred forty-nine million, three hundred eighty-two thousand, sixty-six".