2210131945 has 16 divisors (see below), whose sum is σ = 3031913088. Its totient is φ = 1515081600.

The previous prime is 2210131933. The next prime is 2210131961. The reversal of 2210131945 is 5491310122.

It is not a de Polignac number, because 2210131945 - 2¹⁷ = 2210000873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155997 + ... + 169573.

It is an arithmetic number, because the mean of its divisors is an integer number (189494568).

Almost surely, 2^2210131945 is an apocalyptic number.

It is an amenable number.

2210131945 is a deficient number, since it is larger than the sum of its proper divisors (821781143).

2210131945 is a wasteful number, since it uses less digits than its factorization.

2210131945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18240.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2210131945 is about 47012.0404258313. The cubic root of 2210131945 is about 1302.5849837037.

The spelling of 2210131945 in words is "two billion, two hundred ten million, one hundred thirty-one thousand, nine hundred forty-five".