1156101 has 8 divisors (see below), whose sum is σ = 1562880. Its totient is φ = 760032.

The previous prime is 1156097. The next prime is 1156109. The reversal of 1156101 is 1016511.

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

It is not a de Polignac number, because 1156101 - 2² = 1156097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2421 + ... + 2858.

It is an arithmetic number, because the mean of its divisors is an integer number (195360).

2^1156101 is an apocalyptic number.

It is an amenable number.

1156101 is a deficient number, since it is larger than the sum of its proper divisors (406779).

1156101 is an equidigital number, since it uses as much as digits as its factorization.

1156101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1156101 is about 1075.2213725554. The cubic root of 1156101 is about 104.9539026677.

It can be divided in two parts, 115 and 6101, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 1156101 in words is "one million, one hundred fifty-six thousand, one hundred one".