1093597381 has 4 divisors (see below), whose sum is σ = 1102208512. Its totient is φ = 1084986252.

The previous prime is 1093597367. The next prime is 1093597423. The reversal of 1093597381 is 1837953901.

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.

It is a cyclic number.

It is not a de Polignac number, because 1093597381 - 2¹¹ = 1093595333 is a prime.

It is a super-3 number, since 3×1093597381³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1093597781) 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, 4305375 + ... + 4305628.

It is an arithmetic number, because the mean of its divisors is an integer number (275552128).

Almost surely, 2^1093597381 is an apocalyptic number.

It is an amenable number.

1093597381 is a deficient number, since it is larger than the sum of its proper divisors (8611131).

1093597381 is an equidigital number, since it uses as much as digits as its factorization.

1093597381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611130.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1093597381 is about 33069.5839254140. The cubic root of 1093597381 is about 1030.2733999465.

The spelling of 1093597381 in words is "one billion, ninety-three million, five hundred ninety-seven thousand, three hundred eighty-one".