1151553 has 8 divisors (see below), whose sum is σ = 1653568. Its totient is φ = 708624.

The previous prime is 1151537. The next prime is 1151569. The reversal of 1151553 is 3551511.

It is an interprime number because it is at equal distance from previous prime (1151537) and next prime (1151569).

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

It is not a de Polignac number, because 1151553 - 2⁴ = 1151537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151593) 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, 14725 + ... + 14802.

It is an arithmetic number, because the mean of its divisors is an integer number (206696).

2^1151553 is an apocalyptic number.

1151553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1151553 is a deficient number, since it is larger than the sum of its proper divisors (502015).

1151553 is a wasteful number, since it uses less digits than its factorization.

1151553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29543.

The product of its digits is 375, while the sum is 21.

The square root of 1151553 is about 1073.1043751658. The cubic root of 1151553 is about 104.8160953175.

The spelling of 1151553 in words is "one million, one hundred fifty-one thousand, five hundred fifty-three".