136780146244 has 27 divisors (see below), whose sum is σ = 278455838493. Its totient is φ = 58617843648.

The previous prime is 136780146241. The next prime is 136780146259. The reversal of 136780146244 is 442641087631.

The square root of 136780146244 is 369838.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21918802500 + 114861343744 = 148050^2 + 338912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136780146194 and 136780146203.

It is not an unprimeable number, because it can be changed into a prime (136780146241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5164524 + ... + 5190940.

Almost surely, 2^136780146244 is an apocalyptic number.

136780146244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136780146244 is the 369838-th square number.

It is an amenable number.

136780146244 is an abundant number, since it is smaller than the sum of its proper divisors (141675692249).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136780146244 is an frugal number, since it uses more digits than its factorization.

136780146244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52852 (or 26426 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

It can be divided in two parts, 136780 and 146244, that added together give a square (283024 = 532²).

The spelling of 136780146244 in words is "one hundred thirty-six billion, seven hundred eighty million, one hundred forty-six thousand, two hundred forty-four".