3613561231 has 8 divisors (see below), whose sum is σ = 4139325344. Its totient is φ = 3090182400.

The previous prime is 3613561163. The next prime is 3613561243. The reversal of 3613561231 is 1321653163.

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

It is a cyclic number.

It is not a de Polignac number, because 3613561231 - 2²¹ = 3611464079 is a prime.

It is a super-2 number, since 2×3613561231² = 26115649540372470722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3613561193 and 3613561202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613561031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593070 + ... + 599131.

It is an arithmetic number, because the mean of its divisors is an integer number (517415668).

Almost surely, 2^3613561231 is an apocalyptic number.

3613561231 is a deficient number, since it is larger than the sum of its proper divisors (525764113).

3613561231 is a wasteful number, since it uses less digits than its factorization.

3613561231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192641.

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

The square root of 3613561231 is about 60112.9040306655. The cubic root of 3613561231 is about 1534.5409161627.

The spelling of 3613561231 in words is "three billion, six hundred thirteen million, five hundred sixty-one thousand, two hundred thirty-one".