1081653948 has 36 divisors (see below), whose sum is σ = 2828465640. Its totient is φ = 348118176.

The previous prime is 1081653943. The next prime is 1081653997. The reversal of 1081653948 is 8493561801.

1081653948 is a `hidden beast` number, since 108 + 1 + 6 + 539 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081653943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516990 + ... + 519077.

It is an arithmetic number, because the mean of its divisors is an integer number (78568490).

Almost surely, 2^1081653948 is an apocalyptic number.

1081653948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1081653948 is an abundant number, since it is smaller than the sum of its proper divisors (1746811692).

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

1081653948 is a wasteful number, since it uses less digits than its factorization.

1081653948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036106 (or 1036101 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1081653948 is about 32888.5078408857. The cubic root of 1081653948 is about 1026.5090437070.

The spelling of 1081653948 in words is "one billion, eighty-one million, six hundred fifty-three thousand, nine hundred forty-eight".