271157906 has 4 divisors (see below), whose sum is σ = 406736862. Its totient is φ = 135578952.

The previous prime is 271157893. The next prime is 271157921. The reversal of 271157906 is 609751172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 237622225 + 33535681 = 15415^2 + 5791^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 271157906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67789475 + ... + 67789478.

Almost surely, 2^271157906 is an apocalyptic number.

271157906 is a deficient number, since it is larger than the sum of its proper divisors (135578956).

271157906 is a wasteful number, since it uses less digits than its factorization.

271157906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135578955.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 271157906 is about 16466.8729879112. The cubic root of 271157906 is about 647.2530274595.

The spelling of 271157906 in words is "two hundred seventy-one million, one hundred fifty-seven thousand, nine hundred six".