1164455 has 4 divisors (see below), whose sum is σ = 1397352. Its totient is φ = 931560.

The previous prime is 1164439. The next prime is 1164461. The reversal of 1164455 is 5544611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5544611 = 89 ⋅62299.

It is not a de Polignac number, because 1164455 - 2⁴ = 1164439 is a prime.

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, 116441 + ... + 116450.

It is an arithmetic number, because the mean of its divisors is an integer number (349338).

2^1164455 is an apocalyptic number.

1164455 is a deficient number, since it is larger than the sum of its proper divisors (232897).

1164455 is an equidigital number, since it uses as much as digits as its factorization.

1164455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232896.

The product of its digits is 2400, while the sum is 26.

The square root of 1164455 is about 1079.0991613378. The cubic root of 1164455 is about 105.2060955857.

The spelling of 1164455 in words is "one million, one hundred sixty-four thousand, four hundred fifty-five".