1271167601 has 8 divisors (see below), whose sum is σ = 1393303008. Its totient is φ = 1150128000.

The previous prime is 1271167561. The next prime is 1271167603. The reversal of 1271167601 is 1067611721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1271167601 - 2¹⁰ = 1271166577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1271167603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271520 + ... + 276161.

It is an arithmetic number, because the mean of its divisors is an integer number (174162876).

Almost surely, 2^1271167601 is an apocalyptic number.

1271167601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1271167601 is a deficient number, since it is larger than the sum of its proper divisors (122135407).

1271167601 is a wasteful number, since it uses less digits than its factorization.

1271167601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547903.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1271167601 is about 35653.4374359612. The cubic root of 1271167601 is about 1083.2639032637.

The spelling of 1271167601 in words is "one billion, two hundred seventy-one million, one hundred sixty-seven thousand, six hundred one".