103661479 has 4 divisors (see below), whose sum is σ = 104452920. Its totient is φ = 102870040.

The previous prime is 103661477. The next prime is 103661513. The reversal of 103661479 is 974166301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974166301 = 79 ⋅12331219.

It is a cyclic number.

It is not a de Polignac number, because 103661479 - 2¹ = 103661477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103661477) 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, 395524 + ... + 395785.

It is an arithmetic number, because the mean of its divisors is an integer number (26113230).

Almost surely, 2^103661479 is an apocalyptic number.

103661479 is a deficient number, since it is larger than the sum of its proper divisors (791441).

103661479 is an equidigital number, since it uses as much as digits as its factorization.

103661479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791440.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 103661479 is about 10181.4281414741. The cubic root of 103661479 is about 469.7561417931.

The spelling of 103661479 in words is "one hundred three million, six hundred sixty-one thousand, four hundred seventy-nine".