1065220673 has 8 divisors (see below), whose sum is σ = 1163725056. Its totient is φ = 966994000.

The previous prime is 1065220649. The next prime is 1065220691. The reversal of 1065220673 is 3760225601.

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 1065220673 - 2⁶ = 1065220609 is a prime.

It is a super-2 number, since 2×1065220673² = 2269390164373145858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065220573) 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, 61361 + ... + 76782.

It is an arithmetic number, because the mean of its divisors is an integer number (145465632).

Almost surely, 2^1065220673 is an apocalyptic number.

It is an amenable number.

1065220673 is a deficient number, since it is larger than the sum of its proper divisors (98504383).

1065220673 is a wasteful number, since it uses less digits than its factorization.

1065220673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138855.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1065220673 is about 32637.7185630368. The cubic root of 1065220673 is about 1021.2840016605.

The spelling of 1065220673 in words is "one billion, sixty-five million, two hundred twenty thousand, six hundred seventy-three".