1144077331 has 4 divisors (see below), whose sum is σ = 1146060712. Its totient is φ = 1142093952.

The previous prime is 1144077323. The next prime is 1144077349. The reversal of 1144077331 is 1337704411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1337704411 = 179 ⋅7473209.

It is a cyclic number.

It is not a de Polignac number, because 1144077331 - 2³ = 1144077323 is a prime.

It is a super-2 number, since 2×1144077331² = 2617825878616167122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144077293 and 1144077302.

It is not an unprimeable number, because it can be changed into a prime (1144077371) 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, 990825 + ... + 991978.

It is an arithmetic number, because the mean of its divisors is an integer number (286515178).

Almost surely, 2^1144077331 is an apocalyptic number.

1144077331 is a deficient number, since it is larger than the sum of its proper divisors (1983381).

1144077331 is an equidigital number, since it uses as much as digits as its factorization.

1144077331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983380.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 1144077331 is about 33824.2122007298. The cubic root of 1144077331 is about 1045.8878715931.

The spelling of 1144077331 in words is "one billion, one hundred forty-four million, seventy-seven thousand, three hundred thirty-one".