1058681813 has 4 divisors (see below), whose sum is σ = 1209922080. Its totient is φ = 907441548.

The previous prime is 1058681773. The next prime is 1058681839. The reversal of 1058681813 is 3181868501.

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: 3181868501 = 7 ⋅454552643.

It is a cyclic number.

It is not a de Polignac number, because 1058681813 - 2⁸ = 1058681557 is a prime.

It is a super-2 number, since 2×1058681813² = 2241614362353933938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1058681863) 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, 75620123 + ... + 75620136.

It is an arithmetic number, because the mean of its divisors is an integer number (302480520).

Almost surely, 2^1058681813 is an apocalyptic number.

It is an amenable number.

1058681813 is a deficient number, since it is larger than the sum of its proper divisors (151240267).

1058681813 is an equidigital number, since it uses as much as digits as its factorization.

1058681813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151240266.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 1058681813 is about 32537.3909986649. The cubic root of 1058681813 is about 1019.1899928970.

The spelling of 1058681813 in words is "one billion, fifty-eight million, six hundred eighty-one thousand, eight hundred thirteen".