138161151853 has 4 divisors (see below), whose sum is σ = 139825744128. Its totient is φ = 136496559580.

The previous prime is 138161151829. The next prime is 138161151899. The reversal of 138161151853 is 358151161831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138161151853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138161151053) 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, 832296013 + ... + 832296178.

It is an arithmetic number, because the mean of its divisors is an integer number (34956436032).

Almost surely, 2^138161151853 is an apocalyptic number.

It is an amenable number.

138161151853 is a deficient number, since it is larger than the sum of its proper divisors (1664592275).

138161151853 is an equidigital number, since it uses as much as digits as its factorization.

138161151853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664592274.

The product of its digits is 86400, while the sum is 43.

The spelling of 138161151853 in words is "one hundred thirty-eight billion, one hundred sixty-one million, one hundred fifty-one thousand, eight hundred fifty-three".