136048231 has 4 divisors (see below), whose sum is σ = 148416264. Its totient is φ = 123680200.

The previous prime is 136048217. The next prime is 136048279. The reversal of 136048231 is 132840631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136048231 is a prime.

It is a super-2 number, since 2×136048231² = 37018242316458722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136048231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136048201) 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, 6184000 + ... + 6184021.

It is an arithmetic number, because the mean of its divisors is an integer number (37104066).

Almost surely, 2^136048231 is an apocalyptic number.

136048231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136048231 is a deficient number, since it is larger than the sum of its proper divisors (12368033).

136048231 is a wasteful number, since it uses less digits than its factorization.

136048231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12368032.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 136048231 is about 11663.9714934494. The cubic root of 136048231 is about 514.3171028498.

Adding to 136048231 its reverse (132840631), we get a palindrome (268888862).

The spelling of 136048231 in words is "one hundred thirty-six million, forty-eight thousand, two hundred thirty-one".