2175420357 has 24 divisors (see below), whose sum is σ = 3446902368. Its totient is φ = 1311141600.

The previous prime is 2175420347. The next prime is 2175420361. The reversal of 2175420357 is 7530245712.

It is not a de Polignac number, because 2175420357 - 2¹⁵ = 2175387589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175420347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42783 + ... + 78620.

It is an arithmetic number, because the mean of its divisors is an integer number (143620932).

Almost surely, 2^2175420357 is an apocalyptic number.

It is an amenable number.

2175420357 is a deficient number, since it is larger than the sum of its proper divisors (1271482011).

2175420357 is a wasteful number, since it uses less digits than its factorization.

2175420357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121601 (or 121598 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 2175420357 is about 46641.4017478034. The cubic root of 2175420357 is about 1295.7296478967.

The spelling of 2175420357 in words is "two billion, one hundred seventy-five million, four hundred twenty thousand, three hundred fifty-seven".