1337441561 has 8 divisors (see below), whose sum is σ = 1418435784. Its totient is φ = 1256705280.

The previous prime is 1337441549. The next prime is 1337441563. The reversal of 1337441561 is 1651447331.

It can be written as a sum of positive squares in 4 ways, for example, as 217267600 + 1120173961 = 14740^2 + 33469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1337441561 - 2¹⁰ = 1337440537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1337441563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53750 + ... + 74591.

It is an arithmetic number, because the mean of its divisors is an integer number (177304473).

Almost surely, 2^1337441561 is an apocalyptic number.

It is an amenable number.

1337441561 is a deficient number, since it is larger than the sum of its proper divisors (80994223).

1337441561 is a wasteful number, since it uses less digits than its factorization.

1337441561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128971.

The product of its digits is 30240, while the sum is 35.

The square root of 1337441561 is about 36571.0481255323. The cubic root of 1337441561 is about 1101.7716796798.

Adding to 1337441561 its reverse (1651447331), we get a palindrome (2988888892).

The spelling of 1337441561 in words is "one billion, three hundred thirty-seven million, four hundred forty-one thousand, five hundred sixty-one".