1090209901 has 8 divisors (see below), whose sum is σ = 1196443584. Its totient is φ = 985163520.

The previous prime is 1090209893. The next prime is 1090209907. The reversal of 1090209901 is 1099020901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1090209901 - 2³ = 1090209893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090209907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294900 + ... + 298573.

It is an arithmetic number, because the mean of its divisors is an integer number (149555448).

Almost surely, 2^1090209901 is an apocalyptic number.

1090209901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1090209901 is a deficient number, since it is larger than the sum of its proper divisors (106233683).

1090209901 is a wasteful number, since it uses less digits than its factorization.

1090209901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593651.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1090209901 is about 33018.3267444006. The cubic root of 1090209901 is about 1029.2085228921.

The spelling of 1090209901 in words is "one billion, ninety million, two hundred nine thousand, nine hundred one".