1145857773 has 16 divisors (see below), whose sum is σ = 1623214080. Its totient is φ = 717627456.

The previous prime is 1145857771. The next prime is 1145857777. The reversal of 1145857773 is 3777585411.

It is not a de Polignac number, because 1145857773 - 2¹ = 1145857771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145857771) 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, 174765 + ... + 181202.

It is an arithmetic number, because the mean of its divisors is an integer number (101450880).

Almost surely, 2^1145857773 is an apocalyptic number.

It is an amenable number.

1145857773 is a deficient number, since it is larger than the sum of its proper divisors (477356307).

1145857773 is a wasteful number, since it uses less digits than its factorization.

1145857773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356036.

The product of its digits is 823200, while the sum is 48.

The square root of 1145857773 is about 33850.5210151927. The cubic root of 1145857773 is about 1046.4301360907.

The spelling of 1145857773 in words is "one billion, one hundred forty-five million, eight hundred fifty-seven thousand, seven hundred seventy-three".