1271167494 has 32 divisors (see below), whose sum is σ = 2556693504. Its totient is φ = 421337280.

The previous prime is 1271167481. The next prime is 1271167531. The reversal of 1271167494 is 4947611721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394899 + ... + 1395809.

It is an arithmetic number, because the mean of its divisors is an integer number (79896672).

Almost surely, 2^1271167494 is an apocalyptic number.

1271167494 is an abundant number, since it is smaller than the sum of its proper divisors (1285526010).

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

1271167494 is a wasteful number, since it uses less digits than its factorization.

1271167494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 84672, while the sum is 42.

The square root of 1271167494 is about 35653.4359354046. The cubic root of 1271167494 is about 1083.2638728693.

The spelling of 1271167494 in words is "one billion, two hundred seventy-one million, one hundred sixty-seven thousand, four hundred ninety-four".