1671525223 has 4 divisors (see below), whose sum is σ = 1672749360. Its totient is φ = 1670301088.

The previous prime is 1671525203. The next prime is 1671525241. The reversal of 1671525223 is 3225251761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1671525223 - 2¹³ = 1671517031 is a prime.

It is a super-2 number, since 2×1671525223² = 5587993142250399458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671525203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610018 + ... + 612751.

It is an arithmetic number, because the mean of its divisors is an integer number (418187340).

Almost surely, 2^1671525223 is an apocalyptic number.

1671525223 is a deficient number, since it is larger than the sum of its proper divisors (1224137).

1671525223 is a wasteful number, since it uses less digits than its factorization.

1671525223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224136.

The product of its digits is 25200, while the sum is 34.

The square root of 1671525223 is about 40884.2906627961. The cubic root of 1671525223 is about 1186.7820749058.

Adding to 1671525223 its reverse (3225251761), we get a palindrome (4896776984).

The spelling of 1671525223 in words is "one billion, six hundred seventy-one million, five hundred twenty-five thousand, two hundred twenty-three".