136040142656254 has 8 divisors (see below), whose sum is σ = 204162911632008. Its totient is φ = 67985838778920.

The previous prime is 136040142656251. The next prime is 136040142656267. The reversal of 136040142656254 is 452656241040631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 136040142656198 and 136040142656207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136040142656251) 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, 17116269637 + ... + 17116277584.

It is an arithmetic number, because the mean of its divisors is an integer number (25520363954001).

Almost surely, 2^{136040142656254} is an apocalyptic number.

136040142656254 is a deficient number, since it is larger than the sum of its proper divisors (68122768975754).

136040142656254 is a wasteful number, since it uses less digits than its factorization.

136040142656254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34232549210.

The product of its (nonzero) digits is 4147200, while the sum is 49.

Adding to 136040142656254 its reverse (452656241040631), we get a palindrome (588696383696885).

The spelling of 136040142656254 in words is "one hundred thirty-six trillion, forty billion, one hundred forty-two million, six hundred fifty-six thousand, two hundred fifty-four".