1085025729 has 8 divisors (see below), whose sum is σ = 1461025152. Its totient is φ = 716188400.

The previous prime is 1085025673. The next prime is 1085025769. The reversal of 1085025729 is 9275205801.

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 1085025729 - 2¹⁹ = 1084501441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1085025769) 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, 1790169 + ... + 1790774.

It is an arithmetic number, because the mean of its divisors is an integer number (182628144).

Almost surely, 2^1085025729 is an apocalyptic number.

It is an amenable number.

1085025729 is a deficient number, since it is larger than the sum of its proper divisors (375999423).

1085025729 is a wasteful number, since it uses less digits than its factorization.

1085025729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581047.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 1085025729 is about 32939.7287329450. The cubic root of 1085025729 is about 1027.5745642397.

The spelling of 1085025729 in words is "one billion, eighty-five million, twenty-five thousand, seven hundred twenty-nine".