135151442 has 4 divisors (see below), whose sum is σ = 202727166. Its totient is φ = 67575720.

The previous prime is 135151439. The next prime is 135151453. The reversal of 135151442 is 244151531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 127260961 + 7890481 = 11281^2 + 2809^2 .

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 as a sum of consecutive naturals, namely, 33787859 + ... + 33787862.

Almost surely, 2^135151442 is an apocalyptic number.

135151442 is a deficient number, since it is larger than the sum of its proper divisors (67575724).

135151442 is an equidigital number, since it uses as much as digits as its factorization.

135151442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67575723.

The product of its digits is 2400, while the sum is 26.

The square root of 135151442 is about 11625.4652380023. The cubic root of 135151442 is about 513.1845361539.

The spelling of 135151442 in words is "one hundred thirty-five million, one hundred fifty-one thousand, four hundred forty-two".