1064691331 has 8 divisors (see below), whose sum is σ = 1161966384. Its totient is φ = 967497120.

The previous prime is 1064691323. The next prime is 1064691347. The reversal of 1064691331 is 1331964601.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1064691331 - 2³ = 1064691323 is a prime.

It is a super-2 number, since 2×1064691331² = 2267135260613103122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1064691301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9201 + ... + 47053.

It is an arithmetic number, because the mean of its divisors is an integer number (145245798).

Almost surely, 2^1064691331 is an apocalyptic number.

1064691331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1064691331 is a deficient number, since it is larger than the sum of its proper divisors (97275053).

1064691331 is a wasteful number, since it uses less digits than its factorization.

1064691331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40421.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1064691331 is about 32629.6081956250. The cubic root of 1064691331 is about 1021.1148041402.

The spelling of 1064691331 in words is "one billion, sixty-four million, six hundred ninety-one thousand, three hundred thirty-one".