136523042254 has 4 divisors (see below), whose sum is σ = 204784563384. Its totient is φ = 68261521126.

The previous prime is 136523042231. The next prime is 136523042267. The reversal of 136523042254 is 452240325631.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34130760562 + ... + 34130760565.

It is an arithmetic number, because the mean of its divisors is an integer number (51196140846).

Almost surely, 2^136523042254 is an apocalyptic number.

136523042254 is a deficient number, since it is larger than the sum of its proper divisors (68261521130).

136523042254 is an equidigital number, since it uses as much as digits as its factorization.

136523042254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68261521129.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 136523042254 its reverse (452240325631), we get a palindrome (588763367885).

The spelling of 136523042254 in words is "one hundred thirty-six billion, five hundred twenty-three million, forty-two thousand, two hundred fifty-four".