1071555272 has 16 divisors (see below), whose sum is σ = 2047075740. Its totient is φ = 525668416.

The previous prime is 1071555259. The next prime is 1071555319. The reversal of 1071555272 is 2725551701.

It can be written as a sum of positive squares in 2 ways, for example, as 1059762916 + 11792356 = 32554^2 + 3434^2 .

It is a super-2 number, since 2×1071555272² = 2296461401901987968, which contains 22 as substring.

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, 1263203 + ... + 1264050.

Almost surely, 2^1071555272 is an apocalyptic number.

It is an amenable number.

1071555272 is a deficient number, since it is larger than the sum of its proper divisors (975520468).

1071555272 is a wasteful number, since it uses less digits than its factorization.

1071555272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527312 (or 2527308 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 35.

The square root of 1071555272 is about 32734.6188613828. The cubic root of 1071555272 is about 1023.3044414831.

The spelling of 1071555272 in words is "one billion, seventy-one million, five hundred fifty-five thousand, two hundred seventy-two".