1020032605 has 8 divisors (see below), whose sum is σ = 1235479392. Its totient is φ = 808399248.

The previous prime is 1020032603. The next prime is 1020032621. The reversal of 1020032605 is 5062300201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1020032605 - 2¹ = 1020032603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020032603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952767 + ... + 953836.

It is an arithmetic number, because the mean of its divisors is an integer number (154434924).

Almost surely, 2^1020032605 is an apocalyptic number.

It is an amenable number.

1020032605 is a deficient number, since it is larger than the sum of its proper divisors (215446787).

1020032605 is a wasteful number, since it uses less digits than its factorization.

1020032605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906715.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1020032605 is about 31937.9492923387. The cubic root of 1020032605 is about 1006.6334352411.

Adding to 1020032605 its reverse (5062300201), we get a palindrome (6082332806).

The spelling of 1020032605 in words is "one billion, twenty million, thirty-two thousand, six hundred five".