70421161 has 8 divisors (see below), whose sum is σ = 72424800. Its totient is φ = 68444640.

The previous prime is 70421159. The next prime is 70421167. The reversal of 70421161 is 16112407.

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 70421161 - 2¹ = 70421159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70421167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (9053100).

Almost surely, 2^70421161 is an apocalyptic number.

It is an amenable number.

70421161 is a deficient number, since it is larger than the sum of its proper divisors (2003639).

70421161 is a wasteful number, since it uses less digits than its factorization.

70421161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 70421161 is about 8391.7317044815. The cubic root of 70421161 is about 412.9534134008.

Adding to 70421161 its reverse (16112407), we get a palindrome (86533568).

The spelling of 70421161 in words is "seventy million, four hundred twenty-one thousand, one hundred sixty-one".