135091489 has 16 divisors (see below), whose sum is σ = 155054592. Its totient is φ = 116728128.

The previous prime is 135091457. The next prime is 135091493. The reversal of 135091489 is 984190531.

It is not a de Polignac number, because 135091489 - 2⁵ = 135091457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135091189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9247 + ... + 18859.

It is an arithmetic number, because the mean of its divisors is an integer number (9690912).

Almost surely, 2^135091489 is an apocalyptic number.

It is an amenable number.

135091489 is a deficient number, since it is larger than the sum of its proper divisors (19963103).

135091489 is a wasteful number, since it uses less digits than its factorization.

135091489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 135091489 is about 11622.8864315195. The cubic root of 135091489 is about 513.1086422713.

The spelling of 135091489 in words is "one hundred thirty-five million, ninety-one thousand, four hundred eighty-nine".