1085251242 has 8 divisors (see below), whose sum is σ = 2170502496. Its totient is φ = 361750412.

The previous prime is 1085251199. The next prime is 1085251247. The reversal of 1085251242 is 2421525801.

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

1085251242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1085251247) 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, 90437598 + ... + 90437609.

It is an arithmetic number, because the mean of its divisors is an integer number (271312812).

Almost surely, 2^1085251242 is an apocalyptic number.

1085251242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1085251242 is a wasteful number, since it uses less digits than its factorization.

1085251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180875212.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1085251242 is about 32943.1516707191. The cubic root of 1085251242 is about 1027.6457500694.

The spelling of 1085251242 in words is "one billion, eighty-five million, two hundred fifty-one thousand, two hundred forty-two".