70044161 has 4 divisors (see below), whose sum is σ = 76411824. Its totient is φ = 63676500.

The previous prime is 70044133. The next prime is 70044173. The reversal of 70044161 is 16144007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70044161 - 2¹⁰ = 70043137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70044101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3183815 + ... + 3183836.

It is an arithmetic number, because the mean of its divisors is an integer number (19102956).

Almost surely, 2^70044161 is an apocalyptic number.

It is an amenable number.

70044161 is a deficient number, since it is larger than the sum of its proper divisors (6367663).

70044161 is a wasteful number, since it uses less digits than its factorization.

70044161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367662.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 70044161 is about 8369.2389737658. The cubic root of 70044161 is about 412.2151784669.

Adding to 70044161 its reverse (16144007), we get a palindrome (86188168).

The spelling of 70044161 in words is "seventy million, forty-four thousand, one hundred sixty-one".