1338143809154 has 8 divisors (see below), whose sum is σ = 2007231633660. Its totient is φ = 669066597936.

The previous prime is 1338143809151. The next prime is 1338143809169. The reversal of 1338143809154 is 4519083418331.

It can be written as a sum of positive squares in 2 ways, for example, as 1281322122025 + 56821687129 = 1131955^2 + 238373^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1338143809151) 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, 2330249 + ... + 2847164.

Almost surely, 2^{1338143809154} is an apocalyptic number.

1338143809154 is a deficient number, since it is larger than the sum of its proper divisors (669087824506).

1338143809154 is a wasteful number, since it uses less digits than its factorization.

1338143809154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306644.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 1338143809154 in words is "one trillion, three hundred thirty-eight billion, one hundred forty-three million, eight hundred nine thousand, one hundred fifty-four".