136940553 has 6 divisors (see below), whose sum is σ = 197803034. Its totient is φ = 91293696.

The previous prime is 136940537. The next prime is 136940561. The reversal of 136940553 is 355049631.

136940553 is a `hidden beast` number, since 1 + 3 + 69 + 40 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78004224 + 58936329 = 8832^2 + 7677^2 .

It is not a de Polignac number, because 136940553 - 2⁴ = 136940537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136940653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7607800 + ... + 7607817.

Almost surely, 2^136940553 is an apocalyptic number.

It is an amenable number.

136940553 is a deficient number, since it is larger than the sum of its proper divisors (60862481).

136940553 is a wasteful number, since it uses less digits than its factorization.

136940553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215623 (or 15215620 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 136940553 is about 11702.1601851966. The cubic root of 136940553 is about 515.4390989125.

The spelling of 136940553 in words is "one hundred thirty-six million, nine hundred forty thousand, five hundred fifty-three".