70258 has 4 divisors (see below), whose sum is σ = 105390. Its totient is φ = 35128.

The previous prime is 70249. The next prime is 70271. The reversal of 70258 is 85207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85207 = 139 ⋅613.

It can be written as a sum of positive squares in only one way, i.e., 69169 + 1089 = 263^2 + 33^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17563 + ... + 17566.

2⁷⁰²⁵⁸ is an apocalyptic number.

70258 is a deficient number, since it is larger than the sum of its proper divisors (35132).

70258 is a wasteful number, since it uses less digits than its factorization.

70258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35131.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 70258 is about 265.0622568379. The cubic root of 70258 is about 41.2634238527.

The spelling of 70258 in words is "seventy thousand, two hundred fifty-eight".