1020091084 has 12 divisors (see below), whose sum is σ = 1842745408. Its totient is φ = 493592400.

The previous prime is 1020091031. The next prime is 1020091087. The reversal of 1020091084 is 4801900201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020091087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4113147 + ... + 4113394.

Almost surely, 2^1020091084 is an apocalyptic number.

It is an amenable number.

1020091084 is a deficient number, since it is larger than the sum of its proper divisors (822654324).

1020091084 is a wasteful number, since it uses less digits than its factorization.

1020091084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226576 (or 8226574 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1020091084 is about 31938.8647888431. The cubic root of 1020091084 is about 1006.6526718130.

Adding to 1020091084 its reverse (4801900201), we get a palindrome (5821991285).

The spelling of 1020091084 in words is "one billion, twenty million, ninety-one thousand, eighty-four".