1441521145 has 12 divisors (see below), whose sum is σ = 1753878636. Its totient is φ = 1137398400.

The previous prime is 1441521097. The next prime is 1441521149. The reversal of 1441521145 is 5411251441.

It can be written as a sum of positive squares in 6 ways, for example, as 32569849 + 1408951296 = 5707^2 + 37536^2 .

It is not a de Polignac number, because 1441521145 - 2⁷ = 1441521017 is a prime.

It is a super-2 number, since 2×1441521145² = 4155966422964222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1441521149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406 + ... + 53695.

It is an arithmetic number, because the mean of its divisors is an integer number (146156553).

Almost surely, 2^1441521145 is an apocalyptic number.

It is an amenable number.

1441521145 is a deficient number, since it is larger than the sum of its proper divisors (312357491).

1441521145 is an frugal number, since it uses more digits than its factorization.

1441521145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54252 (or 54179 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 1441521145 is about 37967.3694769601. The cubic root of 1441521145 is about 1129.6407203537.

Adding to 1441521145 its reverse (5411251441), we get a palindrome (6852772586).

The spelling of 1441521145 in words is "one billion, four hundred forty-one million, five hundred twenty-one thousand, one hundred forty-five".