1272373267 has 8 divisors (see below), whose sum is σ = 1388390400. Its totient is φ = 1156413960.

The previous prime is 1272373261. The next prime is 1272373309. The reversal of 1272373267 is 7623732721.

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 1272373267 - 2¹⁹ = 1271848979 is a prime.

It is a super-5 number, since 5×1272373267⁵ (a number of 47 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272373261) 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, 40738 + ... + 64840.

It is an arithmetic number, because the mean of its divisors is an integer number (173548800).

Almost surely, 2^1272373267 is an apocalyptic number.

1272373267 is a deficient number, since it is larger than the sum of its proper divisors (116017133).

1272373267 is a wasteful number, since it uses less digits than its factorization.

1272373267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28913.

The product of its digits is 148176, while the sum is 40.

The square root of 1272373267 is about 35670.3415599010. The cubic root of 1272373267 is about 1083.6062766206.

The spelling of 1272373267 in words is "one billion, two hundred seventy-two million, three hundred seventy-three thousand, two hundred sixty-seven".