1642471203 has 4 divisors (see below), whose sum is σ = 2189961608. Its totient is φ = 1094980800.

The previous prime is 1642471189. The next prime is 1642471211. The reversal of 1642471203 is 3021742461.

1642471203 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1642471203 - 2⁶ = 1642471139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642471213) 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, 273745198 + ... + 273745203.

It is an arithmetic number, because the mean of its divisors is an integer number (547490402).

Almost surely, 2^1642471203 is an apocalyptic number.

1642471203 is a deficient number, since it is larger than the sum of its proper divisors (547490405).

1642471203 is an equidigital number, since it uses as much as digits as its factorization.

1642471203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547490404.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1642471203 is about 40527.4129818324. The cubic root of 1642471203 is about 1179.8657328317.

The spelling of 1642471203 in words is "one billion, six hundred forty-two million, four hundred seventy-one thousand, two hundred three".