2149167961 has 16 divisors (see below), whose sum is σ = 2201056000. Its totient is φ = 2098027008.

The previous prime is 2149167949. The next prime is 2149167973. The reversal of 2149167961 is 1697619412.

It is an interprime number because it is at equal distance from previous prime (2149167949) and next prime (2149167973).

It is not a de Polignac number, because 2149167961 - 2¹¹ = 2149165913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149165961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4895380 + ... + 4895818.

It is an arithmetic number, because the mean of its divisors is an integer number (137566000).

Almost surely, 2^2149167961 is an apocalyptic number.

It is an amenable number.

2149167961 is a deficient number, since it is larger than the sum of its proper divisors (51888039).

2149167961 is a wasteful number, since it uses less digits than its factorization.

2149167961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its digits is 163296, while the sum is 46.

The square root of 2149167961 is about 46359.1195019923. The cubic root of 2149167961 is about 1290.4963658816.

The spelling of 2149167961 in words is "two billion, one hundred forty-nine million, one hundred sixty-seven thousand, nine hundred sixty-one".