1051072161 has 8 divisors (see below), whose sum is σ = 1406213760. Its totient is φ = 698322672.

The previous prime is 1051072157. The next prime is 1051072171. The reversal of 1051072161 is 1612701501.

1051072161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1051072161 - 2² = 1051072157 is a prime.

It is a super-2 number, since 2×1051072161² = 2209505375258419842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051072171) 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, 597001 + ... + 598758.

It is an arithmetic number, because the mean of its divisors is an integer number (175776720).

Almost surely, 2^1051072161 is an apocalyptic number.

It is an amenable number.

1051072161 is a deficient number, since it is larger than the sum of its proper divisors (355141599).

1051072161 is a wasteful number, since it uses less digits than its factorization.

1051072161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196055.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 1051072161 is about 32420.2430743509. The cubic root of 1051072161 is about 1016.7421885073.

Adding to 1051072161 its reverse (1612701501), we get a palindrome (2663773662).

The spelling of 1051072161 in words is "one billion, fifty-one million, seventy-two thousand, one hundred sixty-one".