135891455 has 64 divisors (see below), whose sum is σ = 207360000. Its totient is φ = 85123584.

The previous prime is 135891451. The next prime is 135891527. The reversal of 135891455 is 554198531.

It is not a de Polignac number, because 135891455 - 2² = 135891451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135891451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1720106 + ... + 1720184.

It is an arithmetic number, because the mean of its divisors is an integer number (3240000).

Almost surely, 2^135891455 is an apocalyptic number.

135891455 is a deficient number, since it is larger than the sum of its proper divisors (71468545).

135891455 is an equidigital number, since it uses as much as digits as its factorization.

135891455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 167 counting only the distinct ones).

The product of its digits is 108000, while the sum is 41.

The square root of 135891455 is about 11657.2490322546. The cubic root of 135891455 is about 514.1194681094.

The spelling of 135891455 in words is "one hundred thirty-five million, eight hundred ninety-one thousand, four hundred fifty-five".