137128204 has 24 divisors (see below), whose sum is σ = 247883328. Its totient is φ = 66334800.

The previous prime is 137128181. The next prime is 137128207. The reversal of 137128204 is 402821731.

It is not an unprimeable number, because it can be changed into a prime (137128207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14679 + ... + 22129.

It is an arithmetic number, because the mean of its divisors is an integer number (10328472).

Almost surely, 2^137128204 is an apocalyptic number.

It is an amenable number.

137128204 is a deficient number, since it is larger than the sum of its proper divisors (110755124).

137128204 is a wasteful number, since it uses less digits than its factorization.

137128204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7605 (or 7603 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 137128204 is about 11710.1752335309. The cubic root of 137128204 is about 515.6744285594.

Adding to 137128204 its reverse (402821731), we get a palindrome (539949935).

It can be divided in two parts, 13 and 7128204, that added together give a palindrome (7128217).

The spelling of 137128204 in words is "one hundred thirty-seven million, one hundred twenty-eight thousand, two hundred four".