1272056693 has 8 divisors (see below), whose sum is σ = 1312463040. Its totient is φ = 1232097120.

The previous prime is 1272056689. The next prime is 1272056701. The reversal of 1272056693 is 3966502721.

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 1272056693 - 2² = 1272056689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272056693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272056623) 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, 105905 + ... + 117302.

It is an arithmetic number, because the mean of its divisors is an integer number (164057880).

Almost surely, 2^1272056693 is an apocalyptic number.

It is an amenable number.

1272056693 is a deficient number, since it is larger than the sum of its proper divisors (40406347).

1272056693 is a wasteful number, since it uses less digits than its factorization.

1272056693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223387.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 1272056693 is about 35665.9037877915. The cubic root of 1272056693 is about 1083.5163999478.

The spelling of 1272056693 in words is "one billion, two hundred seventy-two million, fifty-six thousand, six hundred ninety-three".