1819134004 has 6 divisors (see below), whose sum is σ = 3183484514. Its totient is φ = 909567000.

The previous prime is 1819133969. The next prime is 1819134007. The reversal of 1819134004 is 4004319181.

It can be written as a sum of positive squares in only one way, i.e., 1817316900 + 1817104 = 42630^2 + 1348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1819134007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227391747 + ... + 227391754.

Almost surely, 2^1819134004 is an apocalyptic number.

It is an amenable number.

1819134004 is a deficient number, since it is larger than the sum of its proper divisors (1364350510).

1819134004 is a wasteful number, since it uses less digits than its factorization.

1819134004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454783505 (or 454783503 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1819134004 is about 42651.3071780924. The cubic root of 1819134004 is about 1220.7354707169.

The spelling of 1819134004 in words is "one billion, eight hundred nineteen million, one hundred thirty-four thousand, four".