1273234065 has 8 divisors (see below), whose sum is σ = 2037174528. Its totient is φ = 679058160.

The previous prime is 1273234063. The next prime is 1273234087. The reversal of 1273234065 is 5604323721.

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

It is not a de Polignac number, because 1273234065 - 2¹ = 1273234063 is a prime.

It is a super-2 number, since 2×1273234065² = 3242249968552848450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1273234063) 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, 42441121 + ... + 42441150.

It is an arithmetic number, because the mean of its divisors is an integer number (254646816).

Almost surely, 2^1273234065 is an apocalyptic number.

1273234065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1273234065 is a deficient number, since it is larger than the sum of its proper divisors (763940463).

1273234065 is an equidigital number, since it uses as much as digits as its factorization.

1273234065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84882279.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 1273234065 is about 35682.4055383042. The cubic root of 1273234065 is about 1083.8505853915.

Adding to 1273234065 its reverse (5604323721), we get a palindrome (6877557786).

The spelling of 1273234065 in words is "one billion, two hundred seventy-three million, two hundred thirty-four thousand, sixty-five".