1271400088 has 32 divisors (see below), whose sum is σ = 2758924800. Its totient is φ = 537986592.

The previous prime is 1271400083. The next prime is 1271400101. The reversal of 1271400088 is 8800041721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271400083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139270 + ... + 148117.

It is an arithmetic number, because the mean of its divisors is an integer number (86216400).

Almost surely, 2^1271400088 is an apocalyptic number.

It is an amenable number.

1271400088 is an abundant number, since it is smaller than the sum of its proper divisors (1487524712).

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

1271400088 is a wasteful number, since it uses less digits than its factorization.

1271400088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287479 (or 287475 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 1271400088 is about 35656.6976597665. The cubic root of 1271400088 is about 1083.3299395134.

The spelling of 1271400088 in words is "one billion, two hundred seventy-one million, four hundred thousand, eighty-eight".