135369919 has 8 divisors (see below), whose sum is σ = 137874608. Its totient is φ = 132874560.

The previous prime is 135369907. The next prime is 135369931. The reversal of 135369919 is 919963531.

It is an interprime number because it is at equal distance from previous prime (135369907) and next prime (135369931).

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 135369919 - 2⁵ = 135369887 is a prime.

It is a super-2 number, since 2×135369919² = 36650029940133122, 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 (135369119) 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, 31339 + ... + 35395.

It is an arithmetic number, because the mean of its divisors is an integer number (17234326).

Almost surely, 2^135369919 is an apocalyptic number.

135369919 is a deficient number, since it is larger than the sum of its proper divisors (2504689).

135369919 is an equidigital number, since it uses as much as digits as its factorization.

135369919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665.

The product of its digits is 196830, while the sum is 46.

The square root of 135369919 is about 11634.8579277961. The cubic root of 135369919 is about 513.4609141579.

The spelling of 135369919 in words is "one hundred thirty-five million, three hundred sixty-nine thousand, nine hundred nineteen".