136243054 has 4 divisors (see below), whose sum is σ = 204364584. Its totient is φ = 68121526.

The previous prime is 136243043. The next prime is 136243057. The reversal of 136243054 is 450342631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136243057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34060762 + ... + 34060765.

It is an arithmetic number, because the mean of its divisors is an integer number (51091146).

Almost surely, 2^136243054 is an apocalyptic number.

136243054 is a deficient number, since it is larger than the sum of its proper divisors (68121530).

136243054 is an equidigital number, since it uses as much as digits as its factorization.

136243054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68121529.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 136243054 is about 11672.3199921866. The cubic root of 136243054 is about 514.5624888881.

Adding to 136243054 its reverse (450342631), we get a palindrome (586585685).

The spelling of 136243054 in words is "one hundred thirty-six million, two hundred forty-three thousand, fifty-four".