1145939793 has 16 divisors (see below), whose sum is σ = 1570375680. Its totient is φ = 743021136.

The previous prime is 1145939789. The next prime is 1145939801. The reversal of 1145939793 is 3979395411.

It is not a de Polignac number, because 1145939793 - 2² = 1145939789 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145939593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20205 + ... + 51962.

It is an arithmetic number, because the mean of its divisors is an integer number (98148480).

Almost surely, 2^1145939793 is an apocalyptic number.

It is an amenable number.

1145939793 is a deficient number, since it is larger than the sum of its proper divisors (424435887).

1145939793 is an equidigital number, since it uses as much as digits as its factorization.

1145939793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72316.

The product of its digits is 918540, while the sum is 51.

The square root of 1145939793 is about 33851.7324962844. The cubic root of 1145939793 is about 1046.4551031660.

The spelling of 1145939793 in words is "one billion, one hundred forty-five million, nine hundred thirty-nine thousand, seven hundred ninety-three".