1445131427 has 16 divisors (see below), whose sum is σ = 1558673280. Its totient is φ = 1334838912.

The previous prime is 1445131417. The next prime is 1445131439. The reversal of 1445131427 is 7241315441.

It is not a de Polignac number, because 1445131427 - 2⁴ = 1445131411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1445131393 and 1445131402.

It is not an unprimeable number, because it can be changed into a prime (1445131417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125728 + ... + 1127010.

It is an arithmetic number, because the mean of its divisors is an integer number (97417080).

Almost surely, 2^1445131427 is an apocalyptic number.

1445131427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1445131427 is a deficient number, since it is larger than the sum of its proper divisors (113541853).

1445131427 is a wasteful number, since it uses less digits than its factorization.

1445131427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its digits is 13440, while the sum is 32.

The square root of 1445131427 is about 38014.8842823439. The cubic root of 1445131427 is about 1130.5829938660.

Adding to 1445131427 its reverse (7241315441), we get a palindrome (8686446868).

The spelling of 1445131427 in words is "one billion, four hundred forty-five million, one hundred thirty-one thousand, four hundred twenty-seven".