137415243 has 8 divisors (see below), whose sum is σ = 209394688. Its totient is φ = 78522984.

The previous prime is 137415241. The next prime is 137415251. The reversal of 137415243 is 342514731.

It is a happy number.

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

It is not a de Polignac number, because 137415243 - 2¹ = 137415241 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 137415243.

It is not an unprimeable number, because it can be changed into a prime (137415241) 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, 3271771 + ... + 3271812.

It is an arithmetic number, because the mean of its divisors is an integer number (26174336).

Almost surely, 2^137415243 is an apocalyptic number.

137415243 is a deficient number, since it is larger than the sum of its proper divisors (71979445).

137415243 is an equidigital number, since it uses as much as digits as its factorization.

137415243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543593.

The product of its digits is 10080, while the sum is 30.

The square root of 137415243 is about 11722.4247918253. The cubic root of 137415243 is about 516.0339838503.

Adding to 137415243 its reverse (342514731), we get a palindrome (479929974).

The spelling of 137415243 in words is "one hundred thirty-seven million, four hundred fifteen thousand, two hundred forty-three".