1156141 has 16 divisors (see below), whose sum is σ = 1419264. Its totient is φ = 920304.

The previous prime is 1156121. The next prime is 1156151. The reversal of 1156141 is 1416511.

It is not a de Polignac number, because 1156141 - 2⁵ = 1156109 is a prime.

It is a super-3 number, since 3×1156141³ = 4636109265234333663, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6840 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

2^1156141 is an apocalyptic number.

It is an amenable number.

1156141 is a deficient number, since it is larger than the sum of its proper divisors (263123).

1156141 is a wasteful number, since it uses less digits than its factorization.

1156141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its digits is 120, while the sum is 19.

The square root of 1156141 is about 1075.2399732153. The cubic root of 1156141 is about 104.9551130890.

The spelling of 1156141 in words is "one million, one hundred fifty-six thousand, one hundred forty-one".