1275636145228 has 12 divisors (see below), whose sum is σ = 2232385273440. Its totient is φ = 637811781392.

The previous prime is 1275636145163. The next prime is 1275636145237. The reversal of 1275636145228 is 8225416365721.

It is a super-3 number, since 3×1275636145228³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100851 + ... + 1939882.

It is an arithmetic number, because the mean of its divisors is an integer number (186032106120).

Almost surely, 2^{1275636145228} is an apocalyptic number.

It is an amenable number.

1275636145228 is a deficient number, since it is larger than the sum of its proper divisors (956749128212).

1275636145228 is a wasteful number, since it uses less digits than its factorization.

1275636145228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145616 (or 3145614 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

It can be divided in two parts, 1275636 and 145228, that added together give a square (1420864 = 1192²).

The spelling of 1275636145228 in words is "one trillion, two hundred seventy-five billion, six hundred thirty-six million, one hundred forty-five thousand, two hundred twenty-eight".