1361512633 has 4 divisors (see below), whose sum is σ = 1466244388. Its totient is φ = 1256780880.

The previous prime is 1361512627. The next prime is 1361512637. The reversal of 1361512633 is 3362151631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 565821369 + 795691264 = 23787^2 + 28208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361512633 - 2²¹ = 1359415481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361512595 and 1361512604.

It is not an unprimeable number, because it can be changed into a prime (1361512637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52365858 + ... + 52365883.

It is an arithmetic number, because the mean of its divisors is an integer number (366561097).

Almost surely, 2^1361512633 is an apocalyptic number.

1361512633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1361512633 is a deficient number, since it is larger than the sum of its proper divisors (104731755).

1361512633 is a wasteful number, since it uses less digits than its factorization.

1361512633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104731754.

The product of its digits is 9720, while the sum is 31.

The square root of 1361512633 is about 36898.6806403698. The cubic root of 1361512633 is about 1108.3422574868.

The spelling of 1361512633 in words is "one billion, three hundred sixty-one million, five hundred twelve thousand, six hundred thirty-three".