2147120870 has 16 divisors (see below), whose sum is σ = 3876499728. Its totient is φ = 856252320.

The previous prime is 2147120867. The next prime is 2147120873. The reversal of 2147120870 is 780217412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2147120867) and next prime (2147120873).

It is a super-2 number, since 2×2147120870² = 9220256060779113800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147120873) 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 7 ways as a sum of consecutive naturals, for example, 321029 + ... + 327648.

It is an arithmetic number, because the mean of its divisors is an integer number (242281233).

Almost surely, 2^2147120870 is an apocalyptic number.

2147120870 is a deficient number, since it is larger than the sum of its proper divisors (1729378858).

2147120870 is a wasteful number, since it uses less digits than its factorization.

2147120870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649015.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 2147120870 is about 46337.0356194697. The cubic root of 2147120870 is about 1290.0865014206.

The spelling of 2147120870 in words is "two billion, one hundred forty-seven million, one hundred twenty thousand, eight hundred seventy".