1451125663 has 4 divisors (see below), whose sum is σ = 1562750728. Its totient is φ = 1339500600.

The previous prime is 1451125657. The next prime is 1451125679. The reversal of 1451125663 is 3665211541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3665211541 = 31267 ⋅117223.

It is a cyclic number.

It is not a de Polignac number, because 1451125663 - 2²⁹ = 914254751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451125063) 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, 55812513 + ... + 55812538.

It is an arithmetic number, because the mean of its divisors is an integer number (390687682).

Almost surely, 2^1451125663 is an apocalyptic number.

1451125663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1451125663 is a deficient number, since it is larger than the sum of its proper divisors (111625065).

1451125663 is a wasteful number, since it uses less digits than its factorization.

1451125663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111625064.

The product of its digits is 21600, while the sum is 34.

The square root of 1451125663 is about 38093.6433411140. The cubic root of 1451125663 is about 1132.1440128495.

The spelling of 1451125663 in words is "one billion, four hundred fifty-one million, one hundred twenty-five thousand, six hundred sixty-three".