1145345536 has 80 divisors (see below), whose sum is σ = 2514124800. Its totient is φ = 518842368.

The previous prime is 1145345527. The next prime is 1145345543. The reversal of 1145345536 is 6355435411.

It is a junction number, because it is equal to n+sod(n) for n = 1145345495 and 1145345504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221185 + ... + 226303.

It is an arithmetic number, because the mean of its divisors is an integer number (31426560).

Almost surely, 2^1145345536 is an apocalyptic number.

1145345536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145345536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257062400).

1145345536 is an abundant number, since it is smaller than the sum of its proper divisors (1368779264).

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

1145345536 is an equidigital number, since it uses as much as digits as its factorization.

1145345536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179 (or 5163 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 1145345536 is about 33842.9540081832. The cubic root of 1145345536 is about 1046.2741830166.

The spelling of 1145345536 in words is "one billion, one hundred forty-five million, three hundred forty-five thousand, five hundred thirty-six".