135989097 has 8 divisors (see below), whose sum is σ = 186219456. Its totient is φ = 88209072.

The previous prime is 135989089. The next prime is 135989143. The reversal of 135989097 is 790989531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135989097 - 2³ = 135989089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135989017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612453 + ... + 612674.

It is an arithmetic number, because the mean of its divisors is an integer number (23277432).

Almost surely, 2^135989097 is an apocalyptic number.

It is an amenable number.

135989097 is a deficient number, since it is larger than the sum of its proper divisors (50230359).

135989097 is a wasteful number, since it uses less digits than its factorization.

135989097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225167.

The product of its (nonzero) digits is 612360, while the sum is 51.

The square root of 135989097 is about 11661.4363180528. The cubic root of 135989097 is about 514.2425752726.

The spelling of 135989097 in words is "one hundred thirty-five million, nine hundred eighty-nine thousand, ninety-seven".