813140061 has 8 divisors (see below), whose sum is σ = 1084322400. Its totient is φ = 542025552.

The previous prime is 813140059. The next prime is 813140063. The reversal of 813140061 is 160041318.

813140061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (813140059) and next prime (813140063).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 813140061 - 2¹ = 813140059 is a prime.

It is a super-2 number, since 2×813140061² = 1322393517606167442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813140063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28191 + ... + 49203.

It is an arithmetic number, because the mean of its divisors is an integer number (135540300).

Almost surely, 2^813140061 is an apocalyptic number.

It is an amenable number.

813140061 is a deficient number, since it is larger than the sum of its proper divisors (271182339).

813140061 is a wasteful number, since it uses less digits than its factorization.

813140061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33915.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 813140061 is about 28515.6108298595. The cubic root of 813140061 is about 933.3727541031.

Adding to 813140061 its reverse (160041318), we get a palindrome (973181379).

The spelling of 813140061 in words is "eight hundred thirteen million, one hundred forty thousand, sixty-one".