70251 has 4 divisors (see below), whose sum is σ = 93672. Its totient is φ = 46832.

The previous prime is 70249. The next prime is 70271. The reversal of 70251 is 15207.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70251 - 2¹ = 70249 is a prime.

It is a D-number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 70251.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70251.

It is not an unprimeable number, because it can be changed into a prime (70201) 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, 11706 + ... + 11711.

It is an arithmetic number, because the mean of its divisors is an integer number (23418).

2⁷⁰²⁵¹ is an apocalyptic number.

70251 is a deficient number, since it is larger than the sum of its proper divisors (23421).

70251 is a wasteful number, since it uses less digits than its factorization.

70251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23420.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 70251 is about 265.0490520640. The cubic root of 70251 is about 41.2620534106.

Adding to 70251 its reverse (15207), we get a palindrome (85458).

The spelling of 70251 in words is "seventy thousand, two hundred fifty-one".