1375645411 has 4 divisors (see below), whose sum is σ = 1572166192. Its totient is φ = 1179124632.

The previous prime is 1375645399. The next prime is 1375645417. The reversal of 1375645411 is 1145465731.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1375645411 - 2⁷ = 1375645283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375645417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98260380 + ... + 98260393.

It is an arithmetic number, because the mean of its divisors is an integer number (393041548).

Almost surely, 2^1375645411 is an apocalyptic number.

1375645411 is a deficient number, since it is larger than the sum of its proper divisors (196520781).

1375645411 is an equidigital number, since it uses as much as digits as its factorization.

1375645411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196520780.

The product of its digits is 50400, while the sum is 37.

The square root of 1375645411 is about 37089.6941346245. The cubic root of 1375645411 is about 1112.1640036711.

The spelling of 1375645411 in words is "one billion, three hundred seventy-five million, six hundred forty-five thousand, four hundred eleven".