1097361 has 16 divisors (see below), whose sum is σ = 1646400. Its totient is φ = 722304.

The previous prime is 1097359. The next prime is 1097377. The reversal of 1097361 is 1637901.

It is not a de Polignac number, because 1097361 - 2¹ = 1097359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1097321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2410 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (102900).

2^1097361 is an apocalyptic number.

It is an amenable number.

1097361 is a deficient number, since it is larger than the sum of its proper divisors (549039).

1097361 is an equidigital number, since it uses as much as digits as its factorization.

1097361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1097361 is about 1047.5499988067. The cubic root of 1097361 is about 103.1453943136.

The spelling of 1097361 in words is "one million, ninety-seven thousand, three hundred sixty-one".