1145305550 has 12 divisors (see below), whose sum is σ = 2130268416. Its totient is φ = 458122200.

The previous prime is 1145305537. The next prime is 1145305597. The reversal of 1145305550 is 555035411.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11453006 + ... + 11453105.

It is an arithmetic number, because the mean of its divisors is an integer number (177522368).

Almost surely, 2^1145305550 is an apocalyptic number.

1145305550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145305550 is a deficient number, since it is larger than the sum of its proper divisors (984962866).

1145305550 is a wasteful number, since it uses less digits than its factorization.

1145305550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22906123 (or 22906118 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1145305550 is about 33842.3632449036. The cubic root of 1145305550 is about 1046.2620071258.

The spelling of 1145305550 in words is "one billion, one hundred forty-five million, three hundred five thousand, five hundred fifty".