104561655 has 32 divisors (see below), whose sum is σ = 192119040. Its totient is φ = 48026880.

The previous prime is 104561651. The next prime is 104561659. The reversal of 104561655 is 556165401.

104561655 = 4571² + 4572² + ... + 4575².

It is an interprime number because it is at equal distance from previous prime (104561651) and next prime (104561659).

It is not a de Polignac number, because 104561655 - 2² = 104561651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104561651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13542 + ... + 19811.

It is an arithmetic number, because the mean of its divisors is an integer number (6003720).

Almost surely, 2^104561655 is an apocalyptic number.

104561655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104561655 is a deficient number, since it is larger than the sum of its proper divisors (87557385).

104561655 is a wasteful number, since it uses less digits than its factorization.

104561655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33391.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 104561655 is about 10225.5393500783. The cubic root of 104561655 is about 471.1119815240. Note that the first 3 decimals are identical.

The spelling of 104561655 in words is "one hundred four million, five hundred sixty-one thousand, six hundred fifty-five".