1097455 has 4 divisors (see below), whose sum is σ = 1316952. Its totient is φ = 877960.

The previous prime is 1097443. The next prime is 1097461. The reversal of 1097455 is 5547901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1097455 - 2⁵ = 1097423 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109741 + ... + 109750.

It is an arithmetic number, because the mean of its divisors is an integer number (329238).

2^1097455 is an apocalyptic number.

1097455 is a deficient number, since it is larger than the sum of its proper divisors (219497).

1097455 is an equidigital number, since it uses as much as digits as its factorization.

1097455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219496.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1097455 is about 1047.5948644395. The cubic root of 1097455 is about 103.1483393761.

The spelling of 1097455 in words is "one million, ninety-seven thousand, four hundred fifty-five".