135089381 has 8 divisors (see below), whose sum is σ = 154886784. Its totient is φ = 115416720.

The previous prime is 135089377. The next prime is 135089387. The reversal of 135089381 is 183980531.

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

It is a cyclic number.

It is not a de Polignac number, because 135089381 - 2² = 135089377 is a prime.

It is a super-2 number, since 2×135089381² = 36498281717926322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135089387) 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, 28850 + ... + 33203.

It is an arithmetic number, because the mean of its divisors is an integer number (19360848).

Almost surely, 2^135089381 is an apocalyptic number.

It is an amenable number.

135089381 is a deficient number, since it is larger than the sum of its proper divisors (19797403).

135089381 is an equidigital number, since it uses as much as digits as its factorization.

135089381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62371.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 135089381 is about 11622.7957480117. The cubic root of 135089381 is about 513.1059733673.

The spelling of 135089381 in words is "one hundred thirty-five million, eighty-nine thousand, three hundred eighty-one".