1021132394 has 8 divisors (see below), whose sum is σ = 1554559968. Its totient is φ = 502945740.

The previous prime is 1021132381. The next prime is 1021132417. The reversal of 1021132394 is 4932311201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1021132394² = 2085422732152342472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3810062 + ... + 3810329.

It is an arithmetic number, because the mean of its divisors is an integer number (194319996).

Almost surely, 2^1021132394 is an apocalyptic number.

1021132394 is a deficient number, since it is larger than the sum of its proper divisors (533427574).

1021132394 is an equidigital number, since it uses as much as digits as its factorization.

1021132394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620460.

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

The square root of 1021132394 is about 31955.1622433684. The cubic root of 1021132394 is about 1006.9950860123.

Adding to 1021132394 its reverse (4932311201), we get a palindrome (5953443595).

The spelling of 1021132394 in words is "one billion, twenty-one million, one hundred thirty-two thousand, three hundred ninety-four".