1271153175400 has 48 divisors (see below), whose sum is σ = 3129280031340. Its totient is φ = 478551782400.

The previous prime is 1271153175389. The next prime is 1271153175427. The reversal of 1271153175400 is 45713511721.

It can be written as a sum of positive squares in 6 ways, for example, as 1078328557476 + 192824617924 = 1038426^2 + 439118^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1271153175400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186930891 + ... + 186937690.

Almost surely, 2^{1271153175400} is an apocalyptic number.

1271153175400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271153175400 is an abundant number, since it is smaller than the sum of its proper divisors (1858126855940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271153175400 is a wasteful number, since it uses less digits than its factorization.

1271153175400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373868614 (or 373868605 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 1271153175400 in words is "one trillion, two hundred seventy-one billion, one hundred fifty-three million, one hundred seventy-five thousand, four hundred".