135143995 has 24 divisors (see below), whose sum is σ = 190053792. Its totient is φ = 90370560.

The previous prime is 135143993. The next prime is 135144019. The reversal of 135143995 is 599341531.

It is not a de Polignac number, because 135143995 - 2¹ = 135143993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135143993) 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 23 ways as a sum of consecutive naturals, for example, 57687 + ... + 59983.

It is an arithmetic number, because the mean of its divisors is an integer number (7918908).

Almost surely, 2^135143995 is an apocalyptic number.

135143995 is a deficient number, since it is larger than the sum of its proper divisors (54909797).

135143995 is an equidigital number, since it uses as much as digits as its factorization.

135143995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2350 counting only the distinct ones).

The product of its digits is 72900, while the sum is 40.

The square root of 135143995 is about 11625.1449453329. The cubic root of 135143995 is about 513.1751102946.

The spelling of 135143995 in words is "one hundred thirty-five million, one hundred forty-three thousand, nine hundred ninety-five".