1373042091 has 32 divisors (see below), whose sum is σ = 1931904000. Its totient is φ = 866194560.

The previous prime is 1373042089. The next prime is 1373042101. The reversal of 1373042091 is 1902403731.

It is not a de Polignac number, because 1373042091 - 2¹ = 1373042089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1373042051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1228665 + ... + 1229781.

It is an arithmetic number, because the mean of its divisors is an integer number (60372000).

Almost surely, 2^1373042091 is an apocalyptic number.

1373042091 is a deficient number, since it is larger than the sum of its proper divisors (558861909).

1373042091 is a wasteful number, since it uses less digits than its factorization.

1373042091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1373042091 is about 37054.5825910912. The cubic root of 1373042091 is about 1111.4619944918.

The spelling of 1373042091 in words is "one billion, three hundred seventy-three million, forty-two thousand, ninety-one".