1275243122 has 8 divisors (see below), whose sum is σ = 1937078400. Its totient is φ = 629550324.

The previous prime is 1275243107. The next prime is 1275243127. The reversal of 1275243122 is 2213425721.

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

It is a super-3 number, since 3×1275243122³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1275243127) 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, 4035422 + ... + 4035737.

It is an arithmetic number, because the mean of its divisors is an integer number (242134800).

Almost surely, 2^1275243122 is an apocalyptic number.

1275243122 is a deficient number, since it is larger than the sum of its proper divisors (661835278).

1275243122 is an equidigital number, since it uses as much as digits as its factorization.

1275243122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8071240.

The product of its digits is 6720, while the sum is 29.

The square root of 1275243122 is about 35710.5463693851. The cubic root of 1275243122 is about 1084.4203610399.

Adding to 1275243122 its reverse (2213425721), we get a palindrome (3488668843).

The spelling of 1275243122 in words is "one billion, two hundred seventy-five million, two hundred forty-three thousand, one hundred twenty-two".