136031 has 4 divisors (see below), whose sum is σ = 155472. Its totient is φ = 116592.

The previous prime is 136027. The next prime is 136033. The reversal of 136031 is 130631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 136031 - 2² = 136027 is a prime.

It is a super-2 number, since 2×136031² = 37008865922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 135997 and 136015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136033) 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, 9710 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (38868).

2¹³⁶⁰³¹ is an apocalyptic number.

136031 is a deficient number, since it is larger than the sum of its proper divisors (19441).

136031 is an equidigital number, since it uses as much as digits as its factorization.

136031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 136031 is about 368.8238061731. The cubic root of 136031 is about 51.4295388560.

Adding to 136031 its reverse (130631), we get a palindrome (266662).

The spelling of 136031 in words is "one hundred thirty-six thousand, thirty-one".