137213248 has 14 divisors (see below), whose sum is σ = 272282666. Its totient is φ = 68606592.

The previous prime is 137213227. The next prime is 137213261. The reversal of 137213248 is 842312731.

It can be written as a sum of positive squares in only one way, i.e., 93547584 + 43665664 = 9672^2 + 6608^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1071915 + ... + 1072042.

Almost surely, 2^137213248 is an apocalyptic number.

It is an amenable number.

137213248 is a deficient number, since it is larger than the sum of its proper divisors (135069418).

137213248 is an equidigital number, since it uses as much as digits as its factorization.

137213248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143969 (or 2143959 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 137213248 is about 11713.8058717054. The cubic root of 137213248 is about 515.7810099724.

Adding to 137213248 its reverse (842312731), we get a palindrome (979525979).

The spelling of 137213248 in words is "one hundred thirty-seven million, two hundred thirteen thousand, two hundred forty-eight".