1171290 has 16 divisors (see below), whose sum is σ = 2811168. Its totient is φ = 312336.

The previous prime is 1171267. The next prime is 1171301. The reversal of 1171290 is 921711.

1171290 = 482² + 483² + ... + 486².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19492 + ... + 19551.

It is an arithmetic number, because the mean of its divisors is an integer number (175698).

2^1171290 is an apocalyptic number.

1171290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1171290 is an abundant number, since it is smaller than the sum of its proper divisors (1639878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1171290 is a wasteful number, since it uses less digits than its factorization.

1171290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39053.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 1171290 is about 1082.2615210752. The cubic root of 1171290 is about 105.4115368432.

The spelling of 1171290 in words is "one million, one hundred seventy-one thousand, two hundred ninety".