2170272631 has 2 divisors, whose sum is σ = 2170272632. Its totient is φ = 2170272630.

The previous prime is 2170272619. The next prime is 2170272659. The reversal of 2170272631 is 1362720712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2170272631 - 2²¹ = 2168175479 is a prime.

It is a super-2 number, since 2×2170272631² = 9420166585735324322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2170272593 and 2170272602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170272661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085136315 + 1085136316.

It is an arithmetic number, because the mean of its divisors is an integer number (1085136316).

Almost surely, 2^2170272631 is an apocalyptic number.

2170272631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170272631 is an equidigital number, since it uses as much as digits as its factorization.

2170272631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2170272631 is about 46586.1849800990. The cubic root of 2170272631 is about 1294.7068066092.

The spelling of 2170272631 in words is "two billion, one hundred seventy million, two hundred seventy-two thousand, six hundred thirty-one".