135516379 has 8 divisors (see below), whose sum is σ = 144035840. Its totient is φ = 127135656.

The previous prime is 135516373. The next prime is 135516457. The reversal of 135516379 is 973615531.

It is a happy number.

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 135516379 - 2³ = 135516371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135516371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32667 + ... + 36580.

It is an arithmetic number, because the mean of its divisors is an integer number (18004480).

Almost surely, 2^135516379 is an apocalyptic number.

135516379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135516379 is a deficient number, since it is larger than the sum of its proper divisors (8519461).

135516379 is a wasteful number, since it uses less digits than its factorization.

135516379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69369.

The product of its digits is 85050, while the sum is 40.

The square root of 135516379 is about 11641.1502438548. The cubic root of 135516379 is about 513.6460226900.

The spelling of 135516379 in words is "one hundred thirty-five million, five hundred sixteen thousand, three hundred seventy-nine".