1172601 has 12 divisors (see below), whose sum is σ = 1710228. Its totient is φ = 774144.

The previous prime is 1172579. The next prime is 1172657. The reversal of 1172601 is 1062711.

It can be written as a sum of positive squares in 2 ways, for example, as 389376 + 783225 = 624^2 + 885^2 .

It is not a de Polignac number, because 1172601 - 2⁶ = 1172537 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1172671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (142519).

2^1172601 is an apocalyptic number.

It is an amenable number.

1172601 is a deficient number, since it is larger than the sum of its proper divisors (537627).

1172601 is a wasteful number, since it uses less digits than its factorization.

1172601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1172601 is about 1082.8670278478. The cubic root of 1172601 is about 105.4508504768.

The spelling of 1172601 in words is "one million, one hundred seventy-two thousand, six hundred one".