1356416645 has 8 divisors (see below), whose sum is σ = 1627993080. Its totient is φ = 1084937920.

The previous prime is 1356416641. The next prime is 1356416657. The reversal of 1356416645 is 5466146531.

It can be written as a sum of positive squares in 4 ways, for example, as 137499076 + 1218917569 = 11726^2 + 34913^2 .

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

It is not a de Polignac number, because 1356416645 - 2² = 1356416641 is a prime.

It is a super-2 number, since 2×1356416645² = 3679732229666112050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356416641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10715 + ... + 53175.

It is an arithmetic number, because the mean of its divisors is an integer number (203499135).

Almost surely, 2^1356416645 is an apocalyptic number.

It is an amenable number.

1356416645 is a deficient number, since it is larger than the sum of its proper divisors (271576435).

1356416645 is an equidigital number, since it uses as much as digits as its factorization.

1356416645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48855.

The product of its digits is 259200, while the sum is 41.

The square root of 1356416645 is about 36829.5621070900. The cubic root of 1356416645 is about 1106.9577287089.

The spelling of 1356416645 in words is "one billion, three hundred fifty-six million, four hundred sixteen thousand, six hundred forty-five".