135951958 has 12 divisors (see below), whose sum is σ = 216630252. Its totient is φ = 63977120.

The previous prime is 135951947. The next prime is 135951979. The reversal of 135951958 is 859159531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117028 + ... + 118183.

It is an arithmetic number, because the mean of its divisors is an integer number (18052521).

Almost surely, 2^135951958 is an apocalyptic number.

135951958 is a deficient number, since it is larger than the sum of its proper divisors (80678294).

135951958 is a wasteful number, since it uses less digits than its factorization.

135951958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235247 (or 235230 counting only the distinct ones).

The product of its digits is 243000, while the sum is 46.

The square root of 135951958 is about 11659.8438239970. The cubic root of 135951958 is about 514.1957573186.

The spelling of 135951958 in words is "one hundred thirty-five million, nine hundred fifty-one thousand, nine hundred fifty-eight".