137700005 has 8 divisors (see below), whose sum is σ = 165710232. Its totient is φ = 109846528.

The previous prime is 137700001. The next prime is 137700019. The reversal of 137700005 is 500007731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1674436 + 136025569 = 1294^2 + 11663^2 .

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 137700005 - 2² = 137700001 is a prime.

It is a super-2 number, since 2×137700005² = 37922582754000050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137700001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37244 + ... + 40773.

It is an arithmetic number, because the mean of its divisors is an integer number (20713779).

Almost surely, 2^137700005 is an apocalyptic number.

It is an amenable number.

137700005 is a deficient number, since it is larger than the sum of its proper divisors (28010227).

137700005 is an equidigital number, since it uses as much as digits as its factorization.

137700005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78375.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 137700005 is about 11734.5645424106. The cubic root of 137700005 is about 516.3901924681.

Adding to 137700005 its reverse (500007731), we get a palindrome (637707736).

The spelling of 137700005 in words is "one hundred thirty-seven million, seven hundred thousand, five".