137424205 has 4 divisors (see below), whose sum is σ = 164909052. Its totient is φ = 109939360.

The previous prime is 137424197. The next prime is 137424223. The reversal of 137424205 is 502424731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95511529 + 41912676 = 9773^2 + 6474^2 .

It is not a de Polignac number, because 137424205 - 2³ = 137424197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13742416 + ... + 13742425.

It is an arithmetic number, because the mean of its divisors is an integer number (41227263).

Almost surely, 2^137424205 is an apocalyptic number.

It is an amenable number.

137424205 is a deficient number, since it is larger than the sum of its proper divisors (27484847).

137424205 is an equidigital number, since it uses as much as digits as its factorization.

137424205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27484846.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 137424205 is about 11722.8070443900. The cubic root of 137424205 is about 516.0452019072.

Adding to 137424205 its reverse (502424731), we get a palindrome (639848936).

The spelling of 137424205 in words is "one hundred thirty-seven million, four hundred twenty-four thousand, two hundred five".