1145853237 has 4 divisors (see below), whose sum is σ = 1527804320. Its totient is φ = 763902156.

The previous prime is 1145853223. The next prime is 1145853253. The reversal of 1145853237 is 7323585411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1145853237 - 2²⁴ = 1129076021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145853195 and 1145853204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145853257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190975537 + ... + 190975542.

It is an arithmetic number, because the mean of its divisors is an integer number (381951080).

Almost surely, 2^1145853237 is an apocalyptic number.

It is an amenable number.

1145853237 is a deficient number, since it is larger than the sum of its proper divisors (381951083).

1145853237 is an equidigital number, since it uses as much as digits as its factorization.

1145853237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381951082.

The product of its digits is 100800, while the sum is 39.

The square root of 1145853237 is about 33850.4540146805. The cubic root of 1145853237 is about 1046.4287552871.

The spelling of 1145853237 in words is "one billion, one hundred forty-five million, eight hundred fifty-three thousand, two hundred thirty-seven".