1345572205 has 8 divisors (see below), whose sum is σ = 1666773504. Its totient is φ = 1041733200.

The previous prime is 1345572139. The next prime is 1345572209. The reversal of 1345572205 is 5022755431.

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

It is not a de Polignac number, because 1345572205 - 2²¹ = 1343475053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345572209) 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, 4340401 + ... + 4340710.

It is an arithmetic number, because the mean of its divisors is an integer number (208346688).

Almost surely, 2^1345572205 is an apocalyptic number.

It is an amenable number.

1345572205 is a deficient number, since it is larger than the sum of its proper divisors (321201299).

1345572205 is an equidigital number, since it uses as much as digits as its factorization.

1345572205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8681147.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 1345572205 is about 36682.0419960503. The cubic root of 1345572205 is about 1103.9998197704. Note that the first 3 decimals are identical.

The spelling of 1345572205 in words is "one billion, three hundred forty-five million, five hundred seventy-two thousand, two hundred five".