1145005253 has 8 divisors (see below), whose sum is σ = 1308890880. Its totient is φ = 981198000.

The previous prime is 1145005241. The next prime is 1145005283. The reversal of 1145005253 is 3525005411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1145005253 - 2¹⁰ = 1145004229 is a prime.

It is a super-2 number, since 2×1145005253² = 2622074058795188018, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145005283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16043 + ... + 50471.

It is an arithmetic number, because the mean of its divisors is an integer number (163611360).

Almost surely, 2^1145005253 is an apocalyptic number.

It is an amenable number.

1145005253 is a deficient number, since it is larger than the sum of its proper divisors (163885627).

1145005253 is an equidigital number, since it uses as much as digits as its factorization.

1145005253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39187.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1145005253 is about 33837.9262514711. The cubic root of 1145005253 is about 1046.1705564773.

The spelling of 1145005253 in words is "one billion, one hundred forty-five million, five thousand, two hundred fifty-three".