136672544 has 12 divisors (see below), whose sum is σ = 269074134. Its totient is φ = 68336256.

The previous prime is 136672519. The next prime is 136672559. The reversal of 136672544 is 445276631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 14348944 = 11060^2 + 3788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136672498 and 136672507.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135477 + ... + 2135540.

Almost surely, 2^136672544 is an apocalyptic number.

It is an amenable number.

136672544 is a deficient number, since it is larger than the sum of its proper divisors (132401590).

136672544 is an equidigital number, since it uses as much as digits as its factorization.

136672544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271027 (or 4271019 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 136672544 is about 11690.7033150277. The cubic root of 136672544 is about 515.1026207038.

The spelling of 136672544 in words is "one hundred thirty-six million, six hundred seventy-two thousand, five hundred forty-four".