1903211134 has 16 divisors (see below), whose sum is σ = 3144585600. Its totient is φ = 856695960.

The previous prime is 1903211131. The next prime is 1903211197. The reversal of 1903211134 is 4311123091.

It is a junction number, because it is equal to n+sod(n) for n = 1903211099 and 1903211108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1903211131) 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 7 ways as a sum of consecutive naturals, for example, 417684 + ... + 422215.

It is an arithmetic number, because the mean of its divisors is an integer number (196536600).

Almost surely, 2^1903211134 is an apocalyptic number.

1903211134 is a deficient number, since it is larger than the sum of its proper divisors (1241374466).

1903211134 is a wasteful number, since it uses less digits than its factorization.

1903211134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840015.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1903211134 is about 43625.8081185896. The cubic root of 1903211134 is about 1239.2596894779.

The spelling of 1903211134 in words is "one billion, nine hundred three million, two hundred eleven thousand, one hundred thirty-four".