1090180389 has 4 divisors (see below), whose sum is σ = 1453573856. Its totient is φ = 726786924.

The previous prime is 1090180387. The next prime is 1090180393. The reversal of 1090180389 is 9830810901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9830810901 = 3 ⋅3276936967.

It is not a de Polignac number, because 1090180389 - 2¹ = 1090180387 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090180387) 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, 181696729 + ... + 181696734.

It is an arithmetic number, because the mean of its divisors is an integer number (363393464).

Almost surely, 2^1090180389 is an apocalyptic number.

It is an amenable number.

1090180389 is a deficient number, since it is larger than the sum of its proper divisors (363393467).

1090180389 is an equidigital number, since it uses as much as digits as its factorization.

1090180389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363393466.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 1090180389 is about 33017.8798380514. The cubic root of 1090180389 is about 1029.1992359110.

The spelling of 1090180389 in words is "one billion, ninety million, one hundred eighty thousand, three hundred eighty-nine".