1345178211 has 16 divisors (see below), whose sum is σ = 1972637184. Its totient is φ = 810188064.

The previous prime is 1345178209. The next prime is 1345178221. The reversal of 1345178211 is 1128715431.

It is not a de Polignac number, because 1345178211 - 2¹ = 1345178209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345178221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365101 + ... + 368766.

It is an arithmetic number, because the mean of its divisors is an integer number (123289824).

Almost surely, 2^1345178211 is an apocalyptic number.

1345178211 is a deficient number, since it is larger than the sum of its proper divisors (627458973).

1345178211 is a wasteful number, since it uses less digits than its factorization.

1345178211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733930.

The product of its digits is 6720, while the sum is 33.

The square root of 1345178211 is about 36676.6712093669. The cubic root of 1345178211 is about 1103.8920560090.

The spelling of 1345178211 in words is "one billion, three hundred forty-five million, one hundred seventy-eight thousand, two hundred eleven".