1352445091 has 12 divisors (see below), whose sum is σ = 1420450752. Its totient is φ = 1287306000.

The previous prime is 1352445089. The next prime is 1352445169. The reversal of 1352445091 is 1905442531.

It is not a de Polignac number, because 1352445091 - 2¹ = 1352445089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1352445001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47086 + ... + 70156.

It is an arithmetic number, because the mean of its divisors is an integer number (118370896).

Almost surely, 2^1352445091 is an apocalyptic number.

1352445091 is a deficient number, since it is larger than the sum of its proper divisors (68005661).

1352445091 is an equidigital number, since it uses as much as digits as its factorization.

1352445091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23194 (or 23163 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1352445091 is about 36775.6045633515. The cubic root of 1352445091 is about 1105.8762910356.

The spelling of 1352445091 in words is "one billion, three hundred fifty-two million, four hundred forty-five thousand, ninety-one".