1061261313 has 8 divisors (see below), whose sum is σ = 1617160128. Its totient is φ = 606435024.

The previous prime is 1061261303. The next prime is 1061261317. The reversal of 1061261313 is 3131621601.

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

It is not a de Polignac number, because 1061261313 - 2⁴ = 1061261297 is a prime.

It is a super-2 number, since 2×1061261313² = 2252551148940967938, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1061261317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25268106 + ... + 25268147.

It is an arithmetic number, because the mean of its divisors is an integer number (202145016).

Almost surely, 2^1061261313 is an apocalyptic number.

It is an amenable number.

1061261313 is a deficient number, since it is larger than the sum of its proper divisors (555898815).

1061261313 is an equidigital number, since it uses as much as digits as its factorization.

1061261313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50536263.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1061261313 is about 32577.0058937282. The cubic root of 1061261313 is about 1020.0170806444.

Adding to 1061261313 its reverse (3131621601), we get a palindrome (4192882914).

The spelling of 1061261313 in words is "one billion, sixty-one million, two hundred sixty-one thousand, three hundred thirteen".