1081530772 has 24 divisors (see below), whose sum is σ = 2173942400. Its totient is φ = 461181600.

The previous prime is 1081530763. The next prime is 1081530781. The reversal of 1081530772 is 2770351801.

It is an interprime number because it is at equal distance from previous prime (1081530763) and next prime (1081530781).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91479 + ... + 102622.

Almost surely, 2^1081530772 is an apocalyptic number.

It is an amenable number.

1081530772 is an abundant number, since it is smaller than the sum of its proper divisors (1092411628).

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

1081530772 is a wasteful number, since it uses less digits than its factorization.

1081530772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194311 (or 194309 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1081530772 is about 32886.6351577658. The cubic root of 1081530772 is about 1026.4700768149.

The spelling of 1081530772 in words is "one billion, eighty-one million, five hundred thirty thousand, seven hundred seventy-two".