1275613355 has 24 divisors (see below), whose sum is σ = 1619402400. Its totient is φ = 964472832.

The previous prime is 1275613351. The next prime is 1275613363. The reversal of 1275613355 is 5533165721.

It is not a de Polignac number, because 1275613355 - 2² = 1275613351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1275613351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1387586 + ... + 1388504.

It is an arithmetic number, because the mean of its divisors is an integer number (67475100).

Almost surely, 2^1275613355 is an apocalyptic number.

1275613355 is a deficient number, since it is larger than the sum of its proper divisors (343789045).

1275613355 is an equidigital number, since it uses as much as digits as its factorization.

1275613355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731 (or 1712 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 1275613355 is about 35715.7297979476. The cubic root of 1275613355 is about 1084.5252951106.

The spelling of 1275613355 in words is "one billion, two hundred seventy-five million, six hundred thirteen thousand, three hundred fifty-five".