1356545217 has 8 divisors (see below), whose sum is σ = 1822534560. Its totient is φ = 897459680.

The previous prime is 1356545173. The next prime is 1356545219. The reversal of 1356545217 is 7125456531.

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 1356545217 - 2⁶ = 1356545153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1356545219) 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, 1725492 + ... + 1726277.

It is an arithmetic number, because the mean of its divisors is an integer number (227816820).

Almost surely, 2^1356545217 is an apocalyptic number.

It is an amenable number.

1356545217 is a deficient number, since it is larger than the sum of its proper divisors (465989343).

1356545217 is a wasteful number, since it uses less digits than its factorization.

1356545217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451903.

The product of its digits is 126000, while the sum is 39.

The square root of 1356545217 is about 36831.3075657110. The cubic root of 1356545217 is about 1106.9927030346.

The spelling of 1356545217 in words is "one billion, three hundred fifty-six million, five hundred forty-five thousand, two hundred seventeen".