70207231 has 8 divisors (see below), whose sum is σ = 72787680. Its totient is φ = 67637472.

The previous prime is 70207213. The next prime is 70207243. The reversal of 70207231 is 13270207.

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 70207231 - 2¹¹ = 70205183 is a prime.

It is a super-2 number, since 2×70207231² = 9858110569374722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70247231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12181 + ... + 16993.

It is an arithmetic number, because the mean of its divisors is an integer number (9098460).

Almost surely, 2^70207231 is an apocalyptic number.

70207231 is a deficient number, since it is larger than the sum of its proper divisors (2580449).

70207231 is a wasteful number, since it uses less digits than its factorization.

70207231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 70207231 is about 8378.9755340376. The cubic root of 70207231 is about 412.5348236288.

Adding to 70207231 its reverse (13270207), we get a palindrome (83477438).

The spelling of 70207231 in words is "seventy million, two hundred seven thousand, two hundred thirty-one".