1156053 has 4 divisors (see below), whose sum is σ = 1541408. Its totient is φ = 770700.

The previous prime is 1156039. The next prime is 1156073. The reversal of 1156053 is 3506511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1156053 - 2⁴ = 1156037 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156013) 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 3 ways as a sum of consecutive naturals, for example, 192673 + ... + 192678.

It is an arithmetic number, because the mean of its divisors is an integer number (385352).

2^1156053 is an apocalyptic number.

It is an amenable number.

1156053 is a deficient number, since it is larger than the sum of its proper divisors (385355).

1156053 is an equidigital number, since it uses as much as digits as its factorization.

1156053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385354.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1156053 is about 1075.1990513389. The cubic root of 1156053 is about 104.9524501253.

The spelling of 1156053 in words is "one million, one hundred fifty-six thousand, fifty-three".