135768463252 has 6 divisors (see below), whose sum is σ = 237594810698. Its totient is φ = 67884231624.

The previous prime is 135768463241. The next prime is 135768463261. The reversal of 135768463252 is 252364867531.

It can be written as a sum of positive squares in only one way, i.e., 83182635396 + 52585827856 = 288414^2 + 229316^2 .

It is a super-2 number, since 2×135768463252² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135768463252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16971057903 + ... + 16971057910.

Almost surely, 2^135768463252 is an apocalyptic number.

It is an amenable number.

135768463252 is a deficient number, since it is larger than the sum of its proper divisors (101826347446).

135768463252 is a wasteful number, since it uses less digits than its factorization.

135768463252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33942115817 (or 33942115815 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 52.

The spelling of 135768463252 in words is "one hundred thirty-five billion, seven hundred sixty-eight million, four hundred sixty-three thousand, two hundred fifty-two".