2061531286 has 8 divisors (see below), whose sum is σ = 3104055504. Its totient is φ = 1026846120.

The previous prime is 2061531271. The next prime is 2061531289. The reversal of 2061531286 is 6821351602.

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

It is a super-2 number, since 2×2061531286² = 8499822486313627592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061531289) 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, 1959105 + ... + 1960156.

It is an arithmetic number, because the mean of its divisors is an integer number (388006938).

Almost surely, 2^2061531286 is an apocalyptic number.

2061531286 is a deficient number, since it is larger than the sum of its proper divisors (1042524218).

2061531286 is a wasteful number, since it uses less digits than its factorization.

2061531286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919526.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2061531286 is about 45404.0888687352. The cubic root of 2061531286 is about 1272.7115244907.

Adding to 2061531286 its reverse (6821351602), we get a palindrome (8882882888).

The spelling of 2061531286 in words is "two billion, sixty-one million, five hundred thirty-one thousand, two hundred eighty-six".