61026831 has 8 divisors (see below), whose sum is σ = 90410160. Its totient is φ = 40684536.

The previous prime is 61026809. The next prime is 61026839. The reversal of 61026831 is 13862016.

61026831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61026831 - 2⁵ = 61026799 is a prime.

It is a super-2 number, since 2×61026831² = 7448548203805122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2260253 = 61026831 / (6 + 1 + 0 + 2 + 6 + 8 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 61026795 and 61026804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61026839) 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 7 ways as a sum of consecutive naturals, for example, 1130100 + ... + 1130153.

It is an arithmetic number, because the mean of its divisors is an integer number (11301270).

Almost surely, 2^61026831 is an apocalyptic number.

61026831 is a deficient number, since it is larger than the sum of its proper divisors (29383329).

61026831 is a wasteful number, since it uses less digits than its factorization.

61026831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260262 (or 2260256 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61026831 is about 7811.9671658296. The cubic root of 61026831 is about 393.7074257823.

Adding to 61026831 its reverse (13862016), we get a palindrome (74888847).

The spelling of 61026831 in words is "sixty-one million, twenty-six thousand, eight hundred thirty-one".