2131738967 has 4 divisors (see below), whose sum is σ = 2142900096. Its totient is φ = 2120577840.

The previous prime is 2131738957. The next prime is 2131738981. The reversal of 2131738967 is 7698371312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2131738967 - 2¹⁴ = 2131722583 is a prime.

It is a super-2 number, since 2×2131738967² = 9088622046852454178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131738907) 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 in 3 ways as a sum of consecutive naturals, for example, 5580278 + ... + 5580659.

It is an arithmetic number, because the mean of its divisors is an integer number (535725024).

Almost surely, 2^2131738967 is an apocalyptic number.

2131738967 is a deficient number, since it is larger than the sum of its proper divisors (11161129).

2131738967 is a wasteful number, since it uses less digits than its factorization.

2131738967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11161128.

The product of its digits is 381024, while the sum is 47.

The square root of 2131738967 is about 46170.7587873537. The cubic root of 2131738967 is about 1286.9984029304.

The spelling of 2131738967 in words is "two billion, one hundred thirty-one million, seven hundred thirty-eight thousand, nine hundred sixty-seven".