1145514540 has 192 divisors, whose sum is σ = 3458681856. Its totient is φ = 282636288.

The previous prime is 1145514527. The next prime is 1145514571. The reversal of 1145514540 is 454155411.

It is a super-2 number, since 2×1145514540² = 2624407122702823200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1145514498 and 1145514507.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8361352 + ... + 8361488.

It is an arithmetic number, because the mean of its divisors is an integer number (18013968).

Almost surely, 2^1145514540 is an apocalyptic number.

1145514540 is a gapful number since it is divisible by the number (10) 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 1145514540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729340928).

1145514540 is an abundant number, since it is smaller than the sum of its proper divisors (2313167316).

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

1145514540 is a wasteful number, since it uses less digits than its factorization.

1145514540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 1145514540 is about 33845.4508021388. The cubic root of 1145514540 is about 1046.3256422545.

Adding to 1145514540 its reverse (454155411), we get a palindrome (1599669951).

The spelling of 1145514540 in words is "one billion, one hundred forty-five million, five hundred fourteen thousand, five hundred forty".