1073165730 has 128 divisors (see below), whose sum is σ = 3230212608. Its totient is φ = 222124032.

The previous prime is 1073165729. The next prime is 1073165747. The reversal of 1073165730 is 375613701.

It is a junction number, because it is equal to n+sod(n) for n = 1073165691 and 1073165700.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140982 + ... + 148398.

It is an arithmetic number, because the mean of its divisors is an integer number (25236036).

Almost surely, 2^1073165730 is an apocalyptic number.

1073165730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1073165730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615106304).

1073165730 is an abundant number, since it is smaller than the sum of its proper divisors (2157046878).

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

1073165730 is a wasteful number, since it uses less digits than its factorization.

1073165730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7500.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 1073165730 is about 32759.2083237675. The cubic root of 1073165730 is about 1023.8168318872.

The spelling of 1073165730 in words is "one billion, seventy-three million, one hundred sixty-five thousand, seven hundred thirty".