1144111425 has 96 divisors (see below), whose sum is σ = 2045869056. Its totient is φ = 562848000.

The previous prime is 1144111399. The next prime is 1144111433. The reversal of 1144111425 is 5241114411.

It is a happy number.

It is not a de Polignac number, because 1144111425 - 2¹² = 1144107329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144111395 and 1144111404.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8733610 + ... + 8733740.

It is an arithmetic number, because the mean of its divisors is an integer number (21311136).

Almost surely, 2^1144111425 is an apocalyptic number.

1144111425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144111425 is a deficient number, since it is larger than the sum of its proper divisors (901757631).

1144111425 is a wasteful number, since it uses less digits than its factorization.

1144111425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 306 counting only the distinct ones).

The product of its digits is 640, while the sum is 24.

The square root of 1144111425 is about 33824.7161850621. The cubic root of 1144111425 is about 1045.8982607938.

Adding to 1144111425 its reverse (5241114411), we get a palindrome (6385225836).

The spelling of 1144111425 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, four hundred twenty-five".