136988 has 12 divisors (see below), whose sum is σ = 250320. Its totient is φ = 65472.

The previous prime is 136987. The next prime is 136991. The reversal of 136988 is 889631.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136987) 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, 653 + ... + 836.

It is an arithmetic number, because the mean of its divisors is an integer number (20860).

2¹³⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

136988 is a deficient number, since it is larger than the sum of its proper divisors (113332).

136988 is a wasteful number, since it uses less digits than its factorization.

136988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1514 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 136988 is about 370.1188998146. The cubic root of 136988 is about 51.5498621614.

The spelling of 136988 in words is "one hundred thirty-six thousand, nine hundred eighty-eight".