1145044653 has 4 divisors (see below), whose sum is σ = 1526726208. Its totient is φ = 763363100.

The previous prime is 1145044651. The next prime is 1145044657. The reversal of 1145044653 is 3564405411.

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 a cyclic number.

It is not a de Polignac number, because 1145044653 - 2¹ = 1145044651 is a prime.

It is a super-2 number, since 2×1145044653² = 2622254514727780818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145044651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190840773 + ... + 190840778.

It is an arithmetic number, because the mean of its divisors is an integer number (381681552).

Almost surely, 2^1145044653 is an apocalyptic number.

It is an amenable number.

1145044653 is a deficient number, since it is larger than the sum of its proper divisors (381681555).

1145044653 is an equidigital number, since it uses as much as digits as its factorization.

1145044653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381681554.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1145044653 is about 33838.5084334401. The cubic root of 1145044653 is about 1046.1825560284.

The spelling of 1145044653 in words is "one billion, one hundred forty-five million, forty-four thousand, six hundred fifty-three".