70331 has 4 divisors (see below), whose sum is σ = 71712. Its totient is φ = 68952.

The previous prime is 70327. The next prime is 70351. The reversal of 70331 is 13307.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13307 = 7 ⋅1901.

It is a cyclic number.

It is not a de Polignac number, because 70331 - 2² = 70327 is a prime.

It is a super-2 number, since 2×70331² = 9892899122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70331.

It is not an unprimeable number, because it can be changed into a prime (70321) 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, 611 + ... + 716.

It is an arithmetic number, because the mean of its divisors is an integer number (17928).

2⁷⁰³³¹ is an apocalyptic number.

70331 is a deficient number, since it is larger than the sum of its proper divisors (1381).

70331 is a wasteful number, since it uses less digits than its factorization.

70331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 70331 is about 265.1999245852. The cubic root of 70331 is about 41.2777101844.

Adding to 70331 its reverse (13307), we get a palindrome (83638).

The spelling of 70331 in words is "seventy thousand, three hundred thirty-one".