1145345040 has 120 divisors (see below), whose sum is σ = 4395962688. Its totient is φ = 261792000.

The previous prime is 1145345011. The next prime is 1145345087. The reversal of 1145345040 is 405435411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 1145344995 and 1145345013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108586 + ... + 118665.

Almost surely, 2^1145345040 is an apocalyptic number.

1145345040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145345040 is an abundant number, since it is smaller than the sum of its proper divisors (3250617648).

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

1145345040 is a wasteful number, since it uses less digits than its factorization.

1145345040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227277 (or 227268 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1145345040 is about 33842.9466802168. The cubic root of 1145345040 is about 1046.2740319844.

The spelling of 1145345040 in words is "one billion, one hundred forty-five million, three hundred forty-five thousand, forty".