1271012413 has 4 divisors (see below), whose sum is σ = 1386559008. Its totient is φ = 1155465820.

The previous prime is 1271012411. The next prime is 1271012441. The reversal of 1271012413 is 3142101721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1271012413 - 2¹ = 1271012411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271012411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57773281 + ... + 57773302.

It is an arithmetic number, because the mean of its divisors is an integer number (346639752).

Almost surely, 2^1271012413 is an apocalyptic number.

It is an amenable number.

1271012413 is a deficient number, since it is larger than the sum of its proper divisors (115546595).

1271012413 is a wasteful number, since it uses less digits than its factorization.

1271012413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115546594.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1271012413 is about 35651.2610295905. The cubic root of 1271012413 is about 1083.2198187543.

The spelling of 1271012413 in words is "one billion, two hundred seventy-one million, twelve thousand, four hundred thirteen".