1229272975493 has 4 divisors (see below), whose sum is σ = 1301583150540. Its totient is φ = 1156962800448.

The previous prime is 1229272975471. The next prime is 1229272975631. The reversal of 1229272975493 is 3945792729221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 708453839809 + 520819135684 = 841697^2 + 721678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229272975493 - 2⁶ = 1229272975429 is a prime.

It is a super-2 number, since 2×1229272975493² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229272975433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36155087498 + ... + 36155087531.

It is an arithmetic number, because the mean of its divisors is an integer number (325395787635).

Almost surely, 2^{1229272975493} is an apocalyptic number.

It is an amenable number.

1229272975493 is a deficient number, since it is larger than the sum of its proper divisors (72310175047).

1229272975493 is an equidigital number, since it uses as much as digits as its factorization.

1229272975493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72310175046.

The product of its digits is 34292160, while the sum is 62.

The spelling of 1229272975493 in words is "one trillion, two hundred twenty-nine billion, two hundred seventy-two million, nine hundred seventy-five thousand, four hundred ninety-three".