1561348 has 12 divisors (see below), whose sum is σ = 2893212. Its totient is φ = 734720.

The previous prime is 1561337. The next prime is 1561349. The reversal of 1561348 is 8431651.

It can be written as a sum of positive squares in 2 ways, for example, as 1149184 + 412164 = 1072^2 + 642^2 .

It is not an unprimeable number, because it can be changed into a prime (1561349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11413 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (241101).

2^1561348 is an apocalyptic number.

It is an amenable number.

1561348 is a deficient number, since it is larger than the sum of its proper divisors (1331864).

1561348 is a wasteful number, since it uses less digits than its factorization.

1561348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22982 (or 22980 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 1561348 is about 1249.5391150340. The cubic root of 1561348 is about 116.0111959071.

Adding to 1561348 its reverse (8431651), we get a palindrome (9992999).

The spelling of 1561348 in words is "one million, five hundred sixty-one thousand, three hundred forty-eight".