1154423534 has 16 divisors (see below), whose sum is σ = 1917254016. Its totient is φ = 516905400.

The previous prime is 1154423507. The next prime is 1154423563. The reversal of 1154423534 is 4353244511.

It is a self number, because there is not a number n which added to its sum of digits gives 1154423534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390122 + ... + 393069.

It is an arithmetic number, because the mean of its divisors is an integer number (119828376).

Almost surely, 2^1154423534 is an apocalyptic number.

1154423534 is a deficient number, since it is larger than the sum of its proper divisors (762830482).

1154423534 is a wasteful number, since it uses less digits than its factorization.

1154423534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783271.

The product of its digits is 28800, while the sum is 32.

The square root of 1154423534 is about 33976.8087671576. The cubic root of 1154423534 is about 1049.0311649854.

The spelling of 1154423534 in words is "one billion, one hundred fifty-four million, four hundred twenty-three thousand, five hundred thirty-four".