104955661 has 4 divisors (see below), whose sum is σ = 105974752. Its totient is φ = 103936572.

The previous prime is 104955607. The next prime is 104955689. The reversal of 104955661 is 166559401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166559401 = 113 ⋅1473977.

It is a cyclic number.

It is not a de Polignac number, because 104955661 - 2⁷ = 104955533 is a prime.

It is a super-3 number, since 3×104955661³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104955661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104955691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509391 + ... + 509596.

It is an arithmetic number, because the mean of its divisors is an integer number (26493688).

Almost surely, 2^104955661 is an apocalyptic number.

It is an amenable number.

104955661 is a deficient number, since it is larger than the sum of its proper divisors (1019091).

104955661 is a wasteful number, since it uses less digits than its factorization.

104955661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019090.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 104955661 is about 10244.7870158437. The cubic root of 104955661 is about 471.7029830209.

The spelling of 104955661 in words is "one hundred four million, nine hundred fifty-five thousand, six hundred sixty-one".