1144555245 has 16 divisors (see below), whose sum is σ = 2034765120. Its totient is φ = 610429392.

The previous prime is 1144555241. The next prime is 1144555259. The reversal of 1144555245 is 5425554411.

1144555245 is a `hidden beast` number, since 114 + 455 + 52 + 45 = 666.

It is not a de Polignac number, because 1144555245 - 2² = 1144555241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144555241) 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, 4238959 + ... + 4239228.

It is an arithmetic number, because the mean of its divisors is an integer number (127172820).

Almost surely, 2^1144555245 is an apocalyptic number.

1144555245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144555245 is a deficient number, since it is larger than the sum of its proper divisors (890209875).

1144555245 is an equidigital number, since it uses as much as digits as its factorization.

1144555245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8478201 (or 8478195 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The square root of 1144555245 is about 33831.2761361436. The cubic root of 1144555245 is about 1046.0334837993.

The spelling of 1144555245 in words is "one billion, one hundred forty-four million, five hundred fifty-five thousand, two hundred forty-five".