1151643 has 8 divisors (see below), whose sum is σ = 1550848. Its totient is φ = 760104.

The previous prime is 1151639. The next prime is 1151651. The reversal of 1151643 is 3461511.

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

It is not a de Polignac number, because 1151643 - 2² = 1151639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555 + ... + 2172.

It is an arithmetic number, because the mean of its divisors is an integer number (193856).

2^1151643 is an apocalyptic number.

1151643 is a deficient number, since it is larger than the sum of its proper divisors (399205).

1151643 is a wasteful number, since it uses less digits than its factorization.

1151643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833.

The product of its digits is 360, while the sum is 21.

The square root of 1151643 is about 1073.1463087576. The cubic root of 1151643 is about 104.8188258917.

The spelling of 1151643 in words is "one million, one hundred fifty-one thousand, six hundred forty-three".