1054531156 has 72 divisors (see below), whose sum is σ = 2198020776. Its totient is φ = 441262080.

The previous prime is 1054531139. The next prime is 1054531171. The reversal of 1054531156 is 6511354501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26687556 + 1027843600 = 5166^2 + 32060^2 .

It is a super-2 number, since 2×1054531156² = 2224071917949392672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2307280 + ... + 2307736.

Almost surely, 2^1054531156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1054531156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099010388).

1054531156 is an abundant number, since it is smaller than the sum of its proper divisors (1143489620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1054531156 is a wasteful number, since it uses less digits than its factorization.

1054531156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1054531156 is about 32473.5454793590. The cubic root of 1054531156 is about 1017.8563065041.

Adding to 1054531156 its reverse (6511354501), we get a palindrome (7565885657).

The spelling of 1054531156 in words is "one billion, fifty-four million, five hundred thirty-one thousand, one hundred fifty-six".