135452985 has 8 divisors (see below), whose sum is σ = 216724800. Its totient is φ = 72241584.

The previous prime is 135452983. The next prime is 135453023. The reversal of 135452985 is 589254531.

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

It is not a de Polignac number, because 135452985 - 2¹ = 135452983 is a prime.

It is a super-2 number, since 2×135452985² = 36695022290820450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135452983) 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, 4515085 + ... + 4515114.

It is an arithmetic number, because the mean of its divisors is an integer number (27090600).

Almost surely, 2^135452985 is an apocalyptic number.

135452985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135452985 is a deficient number, since it is larger than the sum of its proper divisors (81271815).

135452985 is an equidigital number, since it uses as much as digits as its factorization.

135452985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030207.

The product of its digits is 216000, while the sum is 42.

The square root of 135452985 is about 11638.4270844475. The cubic root of 135452985 is about 513.5659163713.

The spelling of 135452985 in words is "one hundred thirty-five million, four hundred fifty-two thousand, nine hundred eighty-five".