1141745 has 8 divisors (see below), whose sum is σ = 1494720. Its totient is φ = 830320.

The previous prime is 1141739. The next prime is 1141757. The reversal of 1141745 is 5471411.

It is a happy number.

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

It is not a de Polignac number, because 1141745 - 2¹⁰ = 1140721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1141745.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10325 + ... + 10434.

It is an arithmetic number, because the mean of its divisors is an integer number (186840).

2^1141745 is an apocalyptic number.

It is an amenable number.

1141745 is a deficient number, since it is larger than the sum of its proper divisors (352975).

1141745 is a wasteful number, since it uses less digits than its factorization.

1141745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20775.

The product of its digits is 560, while the sum is 23.

The square root of 1141745 is about 1068.5246838515. The cubic root of 1141745 is about 104.5176667856.

The spelling of 1141745 in words is "one million, one hundred forty-one thousand, seven hundred forty-five".