2131156767 has 16 divisors (see below), whose sum is σ = 2909007360. Its totient is φ = 1387184832.

The previous prime is 2131156739. The next prime is 2131156787. The reversal of 2131156767 is 7676511312.

It is not a de Polignac number, because 2131156767 - 2¹⁹ = 2130632479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131156787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41043 + ... + 77115.

It is an arithmetic number, because the mean of its divisors is an integer number (181812960).

Almost surely, 2^2131156767 is an apocalyptic number.

2131156767 is a deficient number, since it is larger than the sum of its proper divisors (777850593).

2131156767 is a wasteful number, since it uses less digits than its factorization.

2131156767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36542.

The product of its digits is 52920, while the sum is 39.

The square root of 2131156767 is about 46164.4535005019. The cubic root of 2131156767 is about 1286.8812280628.

The spelling of 2131156767 in words is "two billion, one hundred thirty-one million, one hundred fifty-six thousand, seven hundred sixty-seven".