136028644 has 6 divisors (see below), whose sum is σ = 238050134. Its totient is φ = 68014320.

The previous prime is 136028623. The next prime is 136028671. The reversal of 136028644 is 446820631.

It can be written as a sum of positive squares in only one way, i.e., 134792100 + 1236544 = 11610^2 + 1112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17003577 + ... + 17003584.

Almost surely, 2^136028644 is an apocalyptic number.

It is an amenable number.

136028644 is a deficient number, since it is larger than the sum of its proper divisors (102021490).

136028644 is a wasteful number, since it uses less digits than its factorization.

136028644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34007165 (or 34007163 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 136028644 is about 11663.1318264007. The cubic root of 136028644 is about 514.2924194158.

The spelling of 136028644 in words is "one hundred thirty-six million, twenty-eight thousand, six hundred forty-four".