2145054967 has 6 divisors (see below), whose sum is σ = 2357787824. Its totient is φ = 1950049860.

The previous prime is 2145054953. The next prime is 2145054971. The reversal of 2145054967 is 7694505412.

It is not a de Polignac number, because 2145054967 - 2⁷ = 2145054839 is a prime.

It is a super-2 number, since 2×2145054967² = 9202521622902742178, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145054937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8863743 + ... + 8863984.

Almost surely, 2^2145054967 is an apocalyptic number.

2145054967 is a deficient number, since it is larger than the sum of its proper divisors (212732857).

2145054967 is a wasteful number, since it uses less digits than its factorization.

2145054967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17727749 (or 17727738 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 2145054967 is about 46314.7381186594. The cubic root of 2145054967 is about 1289.6726062582.

The spelling of 2145054967 in words is "two billion, one hundred forty-five million, fifty-four thousand, nine hundred sixty-seven".