1271245706 has 32 divisors (see below), whose sum is σ = 1995134976. Its totient is φ = 606816000.

The previous prime is 1271245687. The next prime is 1271245709. The reversal of 1271245706 is 6075421721.

It is not an unprimeable number, because it can be changed into a prime (1271245709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2949311 + ... + 2949741.

It is an arithmetic number, because the mean of its divisors is an integer number (62347968).

Almost surely, 2^1271245706 is an apocalyptic number.

1271245706 is a deficient number, since it is larger than the sum of its proper divisors (723889270).

1271245706 is a wasteful number, since it uses less digits than its factorization.

1271245706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1271245706 is about 35654.5327553174. The cubic root of 1271245706 is about 1083.2860893217.

The spelling of 1271245706 in words is "one billion, two hundred seventy-one million, two hundred forty-five thousand, seven hundred six".