103661506 has 16 divisors (see below), whose sum is σ = 174734784. Its totient is φ = 45763344.

The previous prime is 103661477. The next prime is 103661513. The reversal of 103661506 is 605166301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86076 + ... + 87271.

It is an arithmetic number, because the mean of its divisors is an integer number (10920924).

Almost surely, 2^103661506 is an apocalyptic number.

103661506 is a deficient number, since it is larger than the sum of its proper divisors (71073278).

103661506 is a wasteful number, since it uses less digits than its factorization.

103661506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173385.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 103661506 is about 10181.4294674176. The cubic root of 103661506 is about 469.7561825778.

The spelling of 103661506 in words is "one hundred three million, six hundred sixty-one thousand, five hundred six".