1071491908 has 6 divisors (see below), whose sum is σ = 1875110846. Its totient is φ = 535745952.

The previous prime is 1071491893. The next prime is 1071491951. The reversal of 1071491908 is 8091941701.

It can be written as a sum of positive squares in only one way, i.e., 792535104 + 278956804 = 28152^2 + 16702^2 .

It is a super-2 number, since 2×1071491908² = 2296189817818960928, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133936485 + ... + 133936492.

Almost surely, 2^1071491908 is an apocalyptic number.

It is an amenable number.

1071491908 is a deficient number, since it is larger than the sum of its proper divisors (803618938).

1071491908 is a wasteful number, since it uses less digits than its factorization.

1071491908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267872981 (or 267872979 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 1071491908 is about 32733.6510032107. The cubic root of 1071491908 is about 1023.2842708202.

The spelling of 1071491908 in words is "one billion, seventy-one million, four hundred ninety-one thousand, nine hundred eight".