1272083999 has 8 divisors (see below), whose sum is σ = 1330838208. Its totient is φ = 1214650240.

The previous prime is 1272083983. The next prime is 1272084059. The reversal of 1272083999 is 9993802721.

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

It is a cyclic number.

It is not a de Polignac number, because 1272083999 - 2⁴ = 1272083983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272083959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328142 + ... + 331995.

It is an arithmetic number, because the mean of its divisors is an integer number (166354776).

Almost surely, 2^1272083999 is an apocalyptic number.

1272083999 is a deficient number, since it is larger than the sum of its proper divisors (58754209).

1272083999 is an equidigital number, since it uses as much as digits as its factorization.

1272083999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660225.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 1272083999 is about 35666.2865883175. The cubic root of 1272083999 is about 1083.5241528221.

The spelling of 1272083999 in words is "one billion, two hundred seventy-two million, eighty-three thousand, nine hundred ninety-nine".