135403402 has 32 divisors (see below), whose sum is σ = 222218640. Its totient is φ = 61624320.

The previous prime is 135403399. The next prime is 135403403. The reversal of 135403402 is 204304531.

It can be written as a sum of positive squares in 8 ways, for example, as 29909961 + 105493441 = 5469^2 + 10271^2 .

It is not an unprimeable number, because it can be changed into a prime (135403403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190624 + ... + 191332.

Almost surely, 2^135403402 is an apocalyptic number.

135403402 is a deficient number, since it is larger than the sum of its proper divisors (86815238).

135403402 is a wasteful number, since it uses less digits than its factorization.

135403402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 135403402 is about 11636.2967476771. The cubic root of 135403402 is about 513.5032445728.

Adding to 135403402 its reverse (204304531), we get a palindrome (339707933).

The spelling of 135403402 in words is "one hundred thirty-five million, four hundred three thousand, four hundred two".