1306772553 has 8 divisors (see below), whose sum is σ = 1755664416. Its totient is φ = 864531200.

The previous prime is 1306772521. The next prime is 1306772603. The reversal of 1306772553 is 3552776031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1306772553 - 2⁵ = 1306772521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1306772503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662168 + ... + 1662953.

It is an arithmetic number, because the mean of its divisors is an integer number (219458052).

Almost surely, 2^1306772553 is an apocalyptic number.

It is an amenable number.

1306772553 is a deficient number, since it is larger than the sum of its proper divisors (448891863).

1306772553 is a wasteful number, since it uses less digits than its factorization.

1306772553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325255.

The product of its (nonzero) digits is 132300, while the sum is 39.

The square root of 1306772553 is about 36149.3091635234. The cubic root of 1306772553 is about 1093.2848618850.

The spelling of 1306772553 in words is "one billion, three hundred six million, seven hundred seventy-two thousand, five hundred fifty-three".