361107561 has 8 divisors (see below), whose sum is σ = 497008384. Its totient is φ = 232972560.

The previous prime is 361107529. The next prime is 361107569. The reversal of 361107561 is 165701163.

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

It is not a de Polignac number, because 361107561 - 2⁵ = 361107529 is a prime.

It is a super-2 number, since 2×361107561² = 260797341222737442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361107569) 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, 1941346 + ... + 1941531.

It is an arithmetic number, because the mean of its divisors is an integer number (62126048).

Almost surely, 2^361107561 is an apocalyptic number.

361107561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

361107561 is a deficient number, since it is larger than the sum of its proper divisors (135900823).

361107561 is a wasteful number, since it uses less digits than its factorization.

361107561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882911.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 361107561 is about 19002.8303418201. The cubic root of 361107561 is about 712.1074466733.

The spelling of 361107561 in words is "three hundred sixty-one million, one hundred seven thousand, five hundred sixty-one".