135021299 has 8 divisors (see below), whose sum is σ = 154387968. Its totient is φ = 115674120.

The previous prime is 135021269. The next prime is 135021373. The reversal of 135021299 is 992120531.

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 135021299 - 2⁸ = 135021043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135021269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15884 + ... + 22854.

It is an arithmetic number, because the mean of its divisors is an integer number (19298496).

Almost surely, 2^135021299 is an apocalyptic number.

135021299 is a deficient number, since it is larger than the sum of its proper divisors (19366669).

135021299 is an equidigital number, since it uses as much as digits as its factorization.

135021299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 135021299 is about 11619.8665654989. The cubic root of 135021299 is about 513.0197609382.

The spelling of 135021299 in words is "one hundred thirty-five million, twenty-one thousand, two hundred ninety-nine".