137199065 has 8 divisors (see below), whose sum is σ = 167338248. Its totient is φ = 107959680.

The previous prime is 137199043. The next prime is 137199067. The reversal of 137199065 is 560991731.

It can be written as a sum of positive squares in 4 ways, for example, as 3125824 + 134073241 = 1768^2 + 11579^2 .

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

It is not a de Polignac number, because 137199065 - 2⁶ = 137199001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137199067) 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, 224612 + ... + 225221.

It is an arithmetic number, because the mean of its divisors is an integer number (20917281).

Almost surely, 2^137199065 is an apocalyptic number.

It is an amenable number.

137199065 is a deficient number, since it is larger than the sum of its proper divisors (30139183).

137199065 is an equidigital number, since it uses as much as digits as its factorization.

137199065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449899.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 137199065 is about 11713.2004593109. The cubic root of 137199065 is about 515.7632381847.

The spelling of 137199065 in words is "one hundred thirty-seven million, one hundred ninety-nine thousand, sixty-five".