1144636425 has 36 divisors (see below), whose sum is σ = 2070117504. Its totient is φ = 604533600.

The previous prime is 1144636421. The next prime is 1144636429. The reversal of 1144636425 is 5246364411.

1144636425 is a `hidden beast` number, since 1 + 1 + 4 + 4 + 6 + 3 + 642 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1144636421) and next prime (1144636429).

It is not a de Polignac number, because 1144636425 - 2² = 1144636421 is a prime.

It is a super-3 number, since 3×1144636425³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144636425.

It is not an unprimeable number, because it can be changed into a prime (1144636421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1521 + ... + 47870.

It is an arithmetic number, because the mean of its divisors is an integer number (57503264).

Almost surely, 2^1144636425 is an apocalyptic number.

1144636425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144636425 is a deficient number, since it is larger than the sum of its proper divisors (925481079).

1144636425 is a wasteful number, since it uses less digits than its factorization.

1144636425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49510 (or 49502 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1144636425 is about 33832.4758922548. The cubic root of 1144636425 is about 1046.0582139266.

The spelling of 1144636425 in words is "one billion, one hundred forty-four million, six hundred thirty-six thousand, four hundred twenty-five".