135143402 has 8 divisors (see below), whose sum is σ = 204006756. Its totient is φ = 67141152.

The previous prime is 135143383. The next prime is 135143429. The reversal of 135143402 is 204341531.

135143402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 132457081 + 2686321 = 11509^2 + 1639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214883 + ... + 215510.

Almost surely, 2^135143402 is an apocalyptic number.

135143402 is a deficient number, since it is larger than the sum of its proper divisors (68863354).

135143402 is a wasteful number, since it uses less digits than its factorization.

135143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430552.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 135143402 is about 11625.1194402466. The cubic root of 135143402 is about 513.1743597043.

Adding to 135143402 its reverse (204341531), we get a palindrome (339484933).

It can be divided in two parts, 13 and 5143402, that added together give a palindrome (5143415).

The spelling of 135143402 in words is "one hundred thirty-five million, one hundred forty-three thousand, four hundred two".