1149826143 has 16 divisors (see below), whose sum is σ = 1607360256. Its totient is φ = 729738240.

The previous prime is 1149826129. The next prime is 1149826159. The reversal of 1149826143 is 3416289411.

It is not a de Polignac number, because 1149826143 - 2²⁴ = 1133048927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149826343) 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, 24930 + ... + 54047.

It is an arithmetic number, because the mean of its divisors is an integer number (100460016).

Almost surely, 2^1149826143 is an apocalyptic number.

1149826143 is a deficient number, since it is larger than the sum of its proper divisors (457534113).

1149826143 is a wasteful number, since it uses less digits than its factorization.

1149826143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79214.

The product of its digits is 41472, while the sum is 39.

The square root of 1149826143 is about 33909.0864371189. The cubic root of 1149826143 is about 1047.6367539419.

The spelling of 1149826143 in words is "one billion, one hundred forty-nine million, eight hundred twenty-six thousand, one hundred forty-three".