361612481 has 8 divisors (see below), whose sum is σ = 368723880. Its totient is φ = 354511872.

The previous prime is 361612441. The next prime is 361612487. The reversal of 361612481 is 184216163.

It can be written as a sum of positive squares in 4 ways, for example, as 270400 + 361342081 = 520^2 + 19009^2 .

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 361612481 - 2¹⁸ = 361350337 is a prime.

It is a super-2 number, since 2×361612481² = 261527172829950722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361612487) 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 7 ways as a sum of consecutive naturals, for example, 110375 + ... + 113603.

It is an arithmetic number, because the mean of its divisors is an integer number (46090485).

Almost surely, 2^361612481 is an apocalyptic number.

It is an amenable number.

361612481 is a deficient number, since it is larger than the sum of its proper divisors (7111399).

361612481 is a wasteful number, since it uses less digits than its factorization.

361612481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395.

The product of its digits is 6912, while the sum is 32.

The square root of 361612481 is about 19016.1110903360. Note that the first 3 decimals coincide. The cubic root of 361612481 is about 712.4391944005.

The spelling of 361612481 in words is "three hundred sixty-one million, six hundred twelve thousand, four hundred eighty-one".