1005452156 has 24 divisors (see below), whose sum is σ = 1827191520. Its totient is φ = 483530432.

The previous prime is 1005452083. The next prime is 1005452159. The reversal of 1005452156 is 6512545001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005452159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14030 + ... + 46986.

It is an arithmetic number, because the mean of its divisors is an integer number (76132980).

Almost surely, 2^1005452156 is an apocalyptic number.

It is an amenable number.

1005452156 is a deficient number, since it is larger than the sum of its proper divisors (821739364).

1005452156 is a wasteful number, since it uses less digits than its factorization.

1005452156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33253 (or 33251 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1005452156 is about 31708.8655741576. The cubic root of 1005452156 is about 1001.8140924120.

Adding to 1005452156 its reverse (6512545001), we get a palindrome (7517997157).

The spelling of 1005452156 in words is "one billion, five million, four hundred fifty-two thousand, one hundred fifty-six".