1145240540 has 48 divisors (see below), whose sum is σ = 2474381952. Its totient is φ = 445026816.

The previous prime is 1145240531. The next prime is 1145240611. The reversal of 1145240540 is 450425411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124334 + ... + 133226.

It is an arithmetic number, because the mean of its divisors is an integer number (51549624).

Almost surely, 2^1145240540 is an apocalyptic number.

1145240540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145240540 is an abundant number, since it is smaller than the sum of its proper divisors (1329141412).

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

1145240540 is a wasteful number, since it uses less digits than its factorization.

1145240540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9086 (or 9084 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1145240540 is about 33841.4027487041. The cubic root of 1145240540 is about 1046.2422107259.

Adding to 1145240540 its reverse (450425411), we get a palindrome (1595665951).

The spelling of 1145240540 in words is "one billion, one hundred forty-five million, two hundred forty thousand, five hundred forty".