1013604173 has 4 divisors (see below), whose sum is σ = 1038326268. Its totient is φ = 988882080.

The previous prime is 1013604139. The next prime is 1013604199. The reversal of 1013604173 is 3714063101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3714063101 = 7 ⋅530580443.

It can be written as a sum of positive squares in 2 ways, for example, as 47513449 + 966090724 = 6893^2 + 31082^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013604173 - 2⁸ = 1013603917 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 (1013604103) 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, 12360986 + ... + 12361067.

It is an arithmetic number, because the mean of its divisors is an integer number (259581567).

Almost surely, 2^1013604173 is an apocalyptic number.

It is an amenable number.

1013604173 is a deficient number, since it is larger than the sum of its proper divisors (24722095).

1013604173 is an equidigital number, since it uses as much as digits as its factorization.

1013604173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24722094.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 1013604173 is about 31837.1508304371. The cubic root of 1013604173 is about 1004.5143146310.

Adding to 1013604173 its reverse (3714063101), we get a palindrome (4727667274).

The spelling of 1013604173 in words is "one billion, thirteen million, six hundred four thousand, one hundred seventy-three".