811241534 has 8 divisors (see below), whose sum is σ = 1258823160. Its totient is φ = 391633816.

The previous prime is 811241531. The next prime is 811241567. The reversal of 811241534 is 435142118.

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

It is a super-2 number, since 2×811241534² = 1316225652973346312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 811241497 and 811241506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811241531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6993404 + ... + 6993519.

It is an arithmetic number, because the mean of its divisors is an integer number (157352895).

Almost surely, 2^811241534 is an apocalyptic number.

811241534 is a deficient number, since it is larger than the sum of its proper divisors (447581626).

811241534 is a wasteful number, since it uses less digits than its factorization.

811241534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13986954.

The product of its digits is 3840, while the sum is 29.

The square root of 811241534 is about 28482.3021190353. The cubic root of 811241534 is about 932.6457722167.

The spelling of 811241534 in words is "eight hundred eleven million, two hundred forty-one thousand, five hundred thirty-four".