137521038 has 8 divisors (see below), whose sum is σ = 275042088. Its totient is φ = 45840344.

The previous prime is 137521037. The next prime is 137521063. The reversal of 137521038 is 830125731.

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

137521038 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137520996 and 137521014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137521037) by changing a digit.

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, 11460081 + ... + 11460092.

It is an arithmetic number, because the mean of its divisors is an integer number (34380261).

Almost surely, 2^137521038 is an apocalyptic number.

137521038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137521038 is a wasteful number, since it uses less digits than its factorization.

137521038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22920178.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 137521038 is about 11726.9364285818. The cubic root of 137521038 is about 516.1663801543.

Adding to 137521038 its reverse (830125731), we get a palindrome (967646769).

The spelling of 137521038 in words is "one hundred thirty-seven million, five hundred twenty-one thousand, thirty-eight".