136442254 has 16 divisors (see below), whose sum is σ = 220650192. Its totient is φ = 62903808.

The previous prime is 136442239. The next prime is 136442297. The reversal of 136442254 is 452244631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26862 + ... + 31534.

It is an arithmetic number, because the mean of its divisors is an integer number (13790637).

Almost surely, 2^136442254 is an apocalyptic number.

136442254 is a deficient number, since it is larger than the sum of its proper divisors (84207938).

136442254 is a wasteful number, since it uses less digits than its factorization.

136442254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811.

The product of its digits is 23040, while the sum is 31.

The square root of 136442254 is about 11680.8498834631. The cubic root of 136442254 is about 514.8131461512.

Adding to 136442254 its reverse (452244631), we get a palindrome (588686885).

The spelling of 136442254 in words is "one hundred thirty-six million, four hundred forty-two thousand, two hundred fifty-four".