103661594 has 4 divisors (see below), whose sum is σ = 155492394. Its totient is φ = 51830796.

The previous prime is 103661581. The next prime is 103661603. The reversal of 103661594 is 495166301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68674369 + 34987225 = 8287^2 + 5915^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25915397 + ... + 25915400.

Almost surely, 2^103661594 is an apocalyptic number.

103661594 is a deficient number, since it is larger than the sum of its proper divisors (51830800).

103661594 is an equidigital number, since it uses as much as digits as its factorization.

103661594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51830799.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 103661594 is about 10181.4337890103. The cubic root of 103661594 is about 469.7563155058.

The spelling of 103661594 in words is "one hundred three million, six hundred sixty-one thousand, five hundred ninety-four".