1473818138 has 8 divisors (see below), whose sum is σ = 2380783188. Its totient is φ = 680223744.

The previous prime is 1473818131. The next prime is 1473818147. The reversal of 1473818138 is 8318183741.

It can be written as a sum of positive squares in 2 ways, for example, as 1429369249 + 44448889 = 37807^2 + 6667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1473818131) 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, 28342631 + ... + 28342682.

Almost surely, 2^1473818138 is an apocalyptic number.

1473818138 is a deficient number, since it is larger than the sum of its proper divisors (906965050).

1473818138 is a wasteful number, since it uses less digits than its factorization.

1473818138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56685328.

The product of its digits is 129024, while the sum is 44.

The square root of 1473818138 is about 38390.3391232742. The cubic root of 1473818138 is about 1138.0149454993.

The spelling of 1473818138 in words is "one billion, four hundred seventy-three million, eight hundred eighteen thousand, one hundred thirty-eight".