1145442748 has 24 divisors (see below), whose sum is σ = 2055448080. Its totient is φ = 558199680.

The previous prime is 1145442737. The next prime is 1145442761. The reversal of 1145442748 is 8472445411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145442748.

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, 198715 + ... + 204397.

It is an arithmetic number, because the mean of its divisors is an integer number (85643670).

Almost surely, 2^1145442748 is an apocalyptic number.

It is an amenable number.

1145442748 is a deficient number, since it is larger than the sum of its proper divisors (910005332).

1145442748 is a wasteful number, since it uses less digits than its factorization.

1145442748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957 (or 6955 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 1145442748 is about 33844.3901998544. The cubic root of 1145442748 is about 1046.3037832624.

The spelling of 1145442748 in words is "one billion, one hundred forty-five million, four hundred forty-two thousand, seven hundred forty-eight".