1081458056 has 64 divisors (see below), whose sum is σ = 2345777280. Its totient is φ = 457850880.

The previous prime is 1081458029. The next prime is 1081458061. The reversal of 1081458056 is 6508541801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2345666 + ... + 2346126.

It is an arithmetic number, because the mean of its divisors is an integer number (36652770).

Almost surely, 2^1081458056 is an apocalyptic number.

It is an amenable number.

1081458056 is an abundant number, since it is smaller than the sum of its proper divisors (1264319224).

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

1081458056 is a wasteful number, since it uses less digits than its factorization.

1081458056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 1081458056 is about 32885.5295836938. The cubic root of 1081458056 is about 1026.4470716224.

Adding to 1081458056 its reverse (6508541801), we get a palindrome (7589999857).

The spelling of 1081458056 in words is "one billion, eighty-one million, four hundred fifty-eight thousand, fifty-six".