1445351131 has 16 divisors (see below), whose sum is σ = 1692275200. Its totient is φ = 1208608128.

The previous prime is 1445351113. The next prime is 1445351153. The reversal of 1445351131 is 1311535441.

It is a de Polignac number, because none of the positive numbers 2^k-1445351131 is a prime.

It is a super-2 number, since 2×1445351131² = 4178079783765958322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1445351131.

It is not an unprimeable number, because it can be changed into a prime (1445351111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301330 + ... + 306088.

It is an arithmetic number, because the mean of its divisors is an integer number (105767200).

Almost surely, 2^1445351131 is an apocalyptic number.

1445351131 is a deficient number, since it is larger than the sum of its proper divisors (246924069).

1445351131 is a wasteful number, since it uses less digits than its factorization.

1445351131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818.

The product of its digits is 3600, while the sum is 28.

The square root of 1445351131 is about 38017.7738827512. The cubic root of 1445351131 is about 1130.6402853147.

Adding to 1445351131 its reverse (1311535441), we get a palindrome (2756886572).

The spelling of 1445351131 in words is "one billion, four hundred forty-five million, three hundred fifty-one thousand, one hundred thirty-one".