2173751155 has 32 divisors (see below), whose sum is σ = 2859425280. Its totient is φ = 1579253760.

The previous prime is 2173751143. The next prime is 2173751171. The reversal of 2173751155 is 5511573712.

It is not a de Polignac number, because 2173751155 - 2¹⁵ = 2173718387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1076707 + ... + 1078723.

It is an arithmetic number, because the mean of its divisors is an integer number (89357040).

Almost surely, 2^2173751155 is an apocalyptic number.

2173751155 is a deficient number, since it is larger than the sum of its proper divisors (685674125).

2173751155 is a wasteful number, since it uses less digits than its factorization.

2173751155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479.

The product of its digits is 36750, while the sum is 37.

The square root of 2173751155 is about 46623.5043191736. The cubic root of 2173751155 is about 1295.3981582560.

The spelling of 2173751155 in words is "two billion, one hundred seventy-three million, seven hundred fifty-one thousand, one hundred fifty-five".