1271052631 has 8 divisors (see below), whose sum is σ = 1299916800. Its totient is φ = 1242264408.

The previous prime is 1271052613. The next prime is 1271052637. The reversal of 1271052631 is 1362501721.

It is a happy number.

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 1271052631 - 2⁹ = 1271052119 is a prime.

It is a super-2 number, since 2×1271052631² = 3231149581544044322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1271052631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271052637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15570 + ... + 52768.

It is an arithmetic number, because the mean of its divisors is an integer number (162489600).

Almost surely, 2^1271052631 is an apocalyptic number.

1271052631 is a deficient number, since it is larger than the sum of its proper divisors (28864169).

1271052631 is an equidigital number, since it uses as much as digits as its factorization.

1271052631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37973.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1271052631 is about 35651.8250724980. The cubic root of 1271052631 is about 1083.2312438919.

It can be divided in two parts, 12710 and 52631, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 1271052631 in words is "one billion, two hundred seventy-one million, fifty-two thousand, six hundred thirty-one".