1085030391 has 16 divisors (see below), whose sum is σ = 1479619584. Its totient is φ = 706941984.

The previous prime is 1085030381. The next prime is 1085030393. The reversal of 1085030391 is 1930305801.

It is a happy number.

It is not a de Polignac number, because 1085030391 - 2¹³ = 1085022199 is a prime.

It is a super-2 number, since 2×1085030391² = 2354581898787225762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085030393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99585 + ... + 109941.

It is an arithmetic number, because the mean of its divisors is an integer number (92476224).

Almost surely, 2^1085030391 is an apocalyptic number.

1085030391 is a deficient number, since it is larger than the sum of its proper divisors (394589193).

1085030391 is a wasteful number, since it uses less digits than its factorization.

1085030391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11150.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1085030391 is about 32939.7994984790. The cubic root of 1085030391 is about 1027.5760359547.

The spelling of 1085030391 in words is "one billion, eighty-five million, thirty thousand, three hundred ninety-one".