1356241061 has 18 divisors (see below), whose sum is σ = 1591950150. Its totient is φ = 1152011280.

The previous prime is 1356241049. The next prime is 1356241087. The reversal of 1356241061 is 1601426531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 910228900 + 446012161 = 30170^2 + 21119^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1356241061 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356243061) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3146516 + ... + 3146946.

It is an arithmetic number, because the mean of its divisors is an integer number (88441675).

Almost surely, 2^1356241061 is an apocalyptic number.

It is an amenable number.

1356241061 is a deficient number, since it is larger than the sum of its proper divisors (235709089).

1356241061 is an frugal number, since it uses more digits than its factorization.

1356241061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1356241061 is about 36827.1782926686. The cubic root of 1356241061 is about 1106.9099625466.

Adding to 1356241061 its reverse (1601426531), we get a palindrome (2957667592).

The spelling of 1356241061 in words is "one billion, three hundred fifty-six million, two hundred forty-one thousand, sixty-one".