1172045 has 8 divisors (see below), whose sum is σ = 1607424. Its totient is φ = 803664.

The previous prime is 1172029. The next prime is 1172047. The reversal of 1172045 is 5402711.

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

It is a cyclic number.

It is not a de Polignac number, because 1172045 - 2⁴ = 1172029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16709 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (200928).

2^1172045 is an apocalyptic number.

It is an amenable number.

1172045 is a deficient number, since it is larger than the sum of its proper divisors (435379).

1172045 is an equidigital number, since it uses as much as digits as its factorization.

1172045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33499.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1172045 is about 1082.6102715197. The cubic root of 1172045 is about 105.4341809981.

Adding to 1172045 its reverse (5402711), we get a palindrome (6574756).

The spelling of 1172045 in words is "one million, one hundred seventy-two thousand, forty-five".