2231451445 has 16 divisors (see below), whose sum is σ = 2746216368. Its totient is φ = 1739612160.

The previous prime is 2231451437. The next prime is 2231451473. The reversal of 2231451445 is 5441541322.

It can be written as a sum of positive squares in 8 ways, for example, as 946300644 + 1285150801 = 30762^2 + 35849^2 .

It is not a de Polignac number, because 2231451445 - 2³ = 2231451437 is a prime.

It is a super-3 number, since 3×2231451445³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186277 + ... + 197893.

It is an arithmetic number, because the mean of its divisors is an integer number (171638523).

Almost surely, 2^2231451445 is an apocalyptic number.

It is an amenable number.

2231451445 is a deficient number, since it is larger than the sum of its proper divisors (514764923).

2231451445 is a wasteful number, since it uses less digits than its factorization.

2231451445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600.

The product of its digits is 19200, while the sum is 31.

The square root of 2231451445 is about 47238.2413410999. The cubic root of 2231451445 is about 1306.7599444538.

Adding to 2231451445 its reverse (5441541322), we get a palindrome (7672992767).

The spelling of 2231451445 in words is "two billion, two hundred thirty-one million, four hundred fifty-one thousand, four hundred forty-five".