2190598173 has 18 divisors (see below), whose sum is σ = 3225404286. Its totient is φ = 1432175472.

The previous prime is 2190598139. The next prime is 2190598183. The reversal of 2190598173 is 3718950912.

It can be written as a sum of positive squares in only one way, i.e., 2025270009 + 165328164 = 45003^2 + 12858^2 .

It is not a de Polignac number, because 2190598173 - 2¹³ = 2190589981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190598133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1021140 + ... + 1023282.

It is an arithmetic number, because the mean of its divisors is an integer number (179189127).

Almost surely, 2^2190598173 is an apocalyptic number.

It is an amenable number.

2190598173 is a deficient number, since it is larger than the sum of its proper divisors (1034806113).

2190598173 is an frugal number, since it uses more digits than its factorization.

2190598173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 2190598173 is about 46803.8264781845. The cubic root of 2190598173 is about 1298.7360837931.

The spelling of 2190598173 in words is "two billion, one hundred ninety million, five hundred ninety-eight thousand, one hundred seventy-three".