135444402 has 48 divisors (see below), whose sum is σ = 302335488. Its totient is φ = 43796160.

The previous prime is 135444373. The next prime is 135444431. The reversal of 135444402 is 204444531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (135444373) and next prime (135444431).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 164163 + ... + 164985.

It is an arithmetic number, because the mean of its divisors is an integer number (6298656).

Almost surely, 2^135444402 is an apocalyptic number.

135444402 is an abundant number, since it is smaller than the sum of its proper divisors (166891086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135444402 is a wasteful number, since it uses less digits than its factorization.

135444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 135444402 is about 11638.0583432117. The cubic root of 135444402 is about 513.5550687468. Note that the first 3 decimals are identical.

Adding to 135444402 its reverse (204444531), we get a palindrome (339888933).

The spelling of 135444402 in words is "one hundred thirty-five million, four hundred forty-four thousand, four hundred two".