138750053 has 8 divisors (see below), whose sum is σ = 155920128. Its totient is φ = 122508144.

The previous prime is 138750041. The next prime is 138750067. The reversal of 138750053 is 350057831.

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

It is a cyclic number.

It is not a de Polignac number, because 138750053 - 2¹⁴ = 138733669 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138759053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231725 + ... + 232322.

It is an arithmetic number, because the mean of its divisors is an integer number (19490016).

Almost surely, 2^138750053 is an apocalyptic number.

138750053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138750053 is a deficient number, since it is larger than the sum of its proper divisors (17170075).

138750053 is a wasteful number, since it uses less digits than its factorization.

138750053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464083.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 138750053 is about 11779.2212391142. The cubic root of 138750053 is about 517.6994686415.

The spelling of 138750053 in words is "one hundred thirty-eight million, seven hundred fifty thousand, fifty-three".