137887836 has 12 divisors (see below), whose sum is σ = 321738312. Its totient is φ = 45962608.

The previous prime is 137887831. The next prime is 137887847. The reversal of 137887836 is 638788731.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137887831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5745315 + ... + 5745338.

It is an arithmetic number, because the mean of its divisors is an integer number (26811526).

Almost surely, 2^137887836 is an apocalyptic number.

It is an amenable number.

137887836 is an abundant number, since it is smaller than the sum of its proper divisors (183850476).

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

137887836 is a wasteful number, since it uses less digits than its factorization.

137887836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11490660 (or 11490658 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 137887836 is about 11742.5651371410. The cubic root of 137887836 is about 516.6248814398.

The spelling of 137887836 in words is "one hundred thirty-seven million, eight hundred eighty-seven thousand, eight hundred thirty-six".