70169 has 4 divisors (see below), whose sum is σ = 76560. Its totient is φ = 63780.

The previous prime is 70163. The next prime is 70177. The reversal of 70169 is 96107.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96107 = 11 ⋅8737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70169 is a prime.

It is a super-2 number, since 2×70169² = 9847377122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (70163) 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, 3179 + ... + 3200.

It is an arithmetic number, because the mean of its divisors is an integer number (19140).

2⁷⁰¹⁶⁹ is an apocalyptic number.

It is an amenable number.

70169 is a deficient number, since it is larger than the sum of its proper divisors (6391).

70169 is a wasteful number, since it uses less digits than its factorization.

70169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 70169 is about 264.8943185499. The cubic root of 70169 is about 41.2459928767.

The spelling of 70169 in words is "seventy thousand, one hundred sixty-nine".