1249445966 has 8 divisors (see below), whose sum is σ = 1972809480. Its totient is φ = 591842808.

The previous prime is 1249445959. The next prime is 1249445983. The reversal of 1249445966 is 6695449421.

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

It is a super-2 number, since 2×1249445966² = 3122230443907346312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16440041 + ... + 16440116.

It is an arithmetic number, because the mean of its divisors is an integer number (246601185).

Almost surely, 2^1249445966 is an apocalyptic number.

1249445966 is a deficient number, since it is larger than the sum of its proper divisors (723363514).

1249445966 is a wasteful number, since it uses less digits than its factorization.

1249445966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32880178.

The product of its digits is 1866240, while the sum is 50.

The square root of 1249445966 is about 35347.5029669707. The cubic root of 1249445966 is about 1077.0581708210.

The spelling of 1249445966 in words is "one billion, two hundred forty-nine million, four hundred forty-five thousand, nine hundred sixty-six".