69138337 has 6 divisors (see below), whose sum is σ = 73444838. Its totient is φ = 65071104.

The previous prime is 69138319. The next prime is 69138343. The reversal of 69138337 is 73383196.

It can be written as a sum of positive squares in 3 ways, for example, as 49787136 + 19351201 = 7056^2 + 4399^2 .

It is not a de Polignac number, because 69138337 - 2¹¹ = 69136289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69138337.

It is not an unprimeable number, because it can be changed into a prime (69138347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119328 + ... + 119905.

Almost surely, 2^69138337 is an apocalyptic number.

It is an amenable number.

69138337 is a deficient number, since it is larger than the sum of its proper divisors (4306501).

69138337 is a wasteful number, since it uses less digits than its factorization.

69138337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239267 (or 239250 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 69138337 is about 8314.9466023541. The cubic root of 69138337 is about 410.4305154623.

The spelling of 69138337 in words is "sixty-nine million, one hundred thirty-eight thousand, three hundred thirty-seven".