1081206992 has 10 divisors (see below), whose sum is σ = 2094838578. Its totient is φ = 540603488.

The previous prime is 1081206983. The next prime is 1081207003. The reversal of 1081206992 is 2996021801.

It can be written as a sum of positive squares in only one way, i.e., 843553936 + 237653056 = 29044^2 + 15416^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33787703 + ... + 33787734.

Almost surely, 2^1081206992 is an apocalyptic number.

It is an amenable number.

1081206992 is a deficient number, since it is larger than the sum of its proper divisors (1013631586).

1081206992 is an equidigital number, since it uses as much as digits as its factorization.

1081206992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67575445 (or 67575439 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1081206992 is about 32881.7121208735. The cubic root of 1081206992 is about 1026.3676344677.

The spelling of 1081206992 in words is "one billion, eighty-one million, two hundred six thousand, nine hundred ninety-two".