135678156202 has 16 divisors (see below), whose sum is σ = 208584685512. Its totient is φ = 66151572480.

The previous prime is 135678156197. The next prime is 135678156203. The reversal of 135678156202 is 202651876531.

It can be written as a sum of positive squares in 4 ways, for example, as 116581956481 + 19096199721 = 341441^2 + 138189^2 .

It is a super-2 number, since 2×135678156202² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135678156203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244773 + ... + 575560.

Almost surely, 2^135678156202 is an apocalyptic number.

135678156202 is a deficient number, since it is larger than the sum of its proper divisors (72906529310).

135678156202 is a wasteful number, since it uses less digits than its factorization.

135678156202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822393.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 135678156202 in words is "one hundred thirty-five billion, six hundred seventy-eight million, one hundred fifty-six thousand, two hundred two".