137630005 has 4 divisors (see below), whose sum is σ = 165156012. Its totient is φ = 110104000.

The previous prime is 137629997. The next prime is 137630033. The reversal of 137630005 is 500036731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500036731 = 8867 ⋅56393.

It can be written as a sum of positive squares in 2 ways, for example, as 84529636 + 53100369 = 9194^2 + 7287^2 .

It is not a de Polignac number, because 137630005 - 2³ = 137629997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13762996 + ... + 13763005.

It is an arithmetic number, because the mean of its divisors is an integer number (41289003).

Almost surely, 2^137630005 is an apocalyptic number.

It is an amenable number.

137630005 is a deficient number, since it is larger than the sum of its proper divisors (27526007).

137630005 is an equidigital number, since it uses as much as digits as its factorization.

137630005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27526006.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 137630005 is about 11731.5815216875. The cubic root of 137630005 is about 516.3026750653.

Adding to 137630005 its reverse (500036731), we get a palindrome (637666736).

The spelling of 137630005 in words is "one hundred thirty-seven million, six hundred thirty thousand, five".