1341445521 has 16 divisors (see below), whose sum is σ = 1928548160. Its totient is φ = 824489280.

The previous prime is 1341445519. The next prime is 1341445531. The reversal of 1341445521 is 1255441431.

It is not a de Polignac number, because 1341445521 - 2¹ = 1341445519 is a prime.

It is a super-2 number, since 2×1341445521² = 3598952171621922882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341445531) 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, 11586 + ... + 53076.

It is an arithmetic number, because the mean of its divisors is an integer number (120534260).

Almost surely, 2^1341445521 is an apocalyptic number.

It is an amenable number.

1341445521 is a deficient number, since it is larger than the sum of its proper divisors (587102639).

1341445521 is a wasteful number, since it uses less digits than its factorization.

1341445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42336.

The product of its digits is 9600, while the sum is 30.

The square root of 1341445521 is about 36625.7494257797. The cubic root of 1341445521 is about 1102.8700590825.

Adding to 1341445521 its reverse (1255441431), we get a palindrome (2596886952).

The spelling of 1341445521 in words is "one billion, three hundred forty-one million, four hundred forty-five thousand, five hundred twenty-one".