1940275171 has 4 divisors (see below), whose sum is σ = 1945162912. Its totient is φ = 1935387432.

The previous prime is 1940275159. The next prime is 1940275199. The reversal of 1940275171 is 1715720491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1715720491 = 9343 ⋅183637.

It is a cyclic number.

It is not a de Polignac number, because 1940275171 - 2²¹ = 1938178019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1940275171.

It is not an unprimeable number, because it can be changed into a prime (1940215171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443275 + ... + 2444068.

It is an arithmetic number, because the mean of its divisors is an integer number (486290728).

Almost surely, 2^1940275171 is an apocalyptic number.

1940275171 is a deficient number, since it is larger than the sum of its proper divisors (4887741).

1940275171 is an equidigital number, since it uses as much as digits as its factorization.

1940275171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887740.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1940275171 is about 44048.5546981964. The cubic root of 1940275171 is about 1247.2526693097.

The spelling of 1940275171 in words is "one billion, nine hundred forty million, two hundred seventy-five thousand, one hundred seventy-one".