138069037 has 4 divisors (see below), whose sum is σ = 138486496. Its totient is φ = 137651580.

The previous prime is 138069031. The next prime is 138069049. The reversal of 138069037 is 730960831.

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, and also an emirpimes, since its reverse is a distinct semiprime: 730960831 = 83 ⋅8806757.

It is a cyclic number.

It is not a de Polignac number, because 138069037 - 2²³ = 129680429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138068987 and 138069005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138069031) 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, 208233 + ... + 208894.

It is an arithmetic number, because the mean of its divisors is an integer number (34621624).

Almost surely, 2^138069037 is an apocalyptic number.

It is an amenable number.

138069037 is a deficient number, since it is larger than the sum of its proper divisors (417459).

138069037 is an equidigital number, since it uses as much as digits as its factorization.

138069037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417458.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 138069037 is about 11750.2781669201. The cubic root of 138069037 is about 516.8510845422.

The spelling of 138069037 in words is "one hundred thirty-eight million, sixty-nine thousand, thirty-seven".