1445731125 has 32 divisors (see below), whose sum is σ = 2510307072. Its totient is φ = 737528000.

The previous prime is 1445731123. The next prime is 1445731127. The reversal of 1445731125 is 5211375441.

It is an interprime number because it is at equal distance from previous prime (1445731123) and next prime (1445731127).

It is not a de Polignac number, because 1445731125 - 2¹ = 1445731123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445731121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75186 + ... + 92435.

It is an arithmetic number, because the mean of its divisors is an integer number (78447096).

Almost surely, 2^1445731125 is an apocalyptic number.

1445731125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445731125 is a deficient number, since it is larger than the sum of its proper divisors (1064575947).

1445731125 is a wasteful number, since it uses less digits than its factorization.

1445731125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167662 (or 167652 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 1445731125 is about 38022.7711378327. The cubic root of 1445731125 is about 1130.7393613269.

The spelling of 1445731125 in words is "one billion, four hundred forty-five million, seven hundred thirty-one thousand, one hundred twenty-five".