136351555 has 4 divisors (see below), whose sum is σ = 163621872. Its totient is φ = 109081240.

The previous prime is 136351541. The next prime is 136351571. The reversal of 136351555 is 555153631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555153631 = 419 ⋅1324949.

It is not a de Polignac number, because 136351555 - 2⁷ = 136351427 is a prime.

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 136351555.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13635151 + ... + 13635160.

It is an arithmetic number, because the mean of its divisors is an integer number (40905468).

Almost surely, 2^136351555 is an apocalyptic number.

136351555 is a deficient number, since it is larger than the sum of its proper divisors (27270317).

136351555 is an equidigital number, since it uses as much as digits as its factorization.

136351555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27270316.

The product of its digits is 33750, while the sum is 34.

The square root of 136351555 is about 11676.9668578788. The cubic root of 136351555 is about 514.6990480956.

The spelling of 136351555 in words is "one hundred thirty-six million, three hundred fifty-one thousand, five hundred fifty-five".