1154046243 has 16 divisors (see below), whose sum is σ = 1806076160. Its totient is φ = 641631456.

The previous prime is 1154046239. The next prime is 1154046259. The reversal of 1154046243 is 3426404511.

It is not a de Polignac number, because 1154046243 - 2² = 1154046239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1154046243.

It is not an unprimeable number, because it can be changed into a prime (1154046233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741853 + ... + 743406.

It is an arithmetic number, because the mean of its divisors is an integer number (112879760).

Almost surely, 2^1154046243 is an apocalyptic number.

1154046243 is a deficient number, since it is larger than the sum of its proper divisors (652029917).

1154046243 is a wasteful number, since it uses less digits than its factorization.

1154046243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485306.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1154046243 is about 33971.2561292632. The cubic root of 1154046243 is about 1048.9168703812.

The spelling of 1154046243 in words is "one billion, one hundred fifty-four million, forty-six thousand, two hundred forty-three".