1021609034 has 4 divisors (see below), whose sum is σ = 1532413554. Its totient is φ = 510804516.

The previous prime is 1021609021. The next prime is 1021609049. The reversal of 1021609034 is 4309061201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 982509025 + 39100009 = 31345^2 + 6253^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1021608994 and 1021609012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255402257 + ... + 255402260.

Almost surely, 2^1021609034 is an apocalyptic number.

1021609034 is a deficient number, since it is larger than the sum of its proper divisors (510804520).

1021609034 is an equidigital number, since it uses as much as digits as its factorization.

1021609034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510804519.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1021609034 is about 31962.6193232032. The cubic root of 1021609034 is about 1007.1517419888.

The spelling of 1021609034 in words is "one billion, twenty-one million, six hundred nine thousand, thirty-four".