70751 has 4 divisors (see below), whose sum is σ = 71400. Its totient is φ = 70104.

The previous prime is 70729. The next prime is 70753. The reversal of 70751 is 15707.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 15707 = 113 ⋅139.

It is a cyclic number.

It is not a de Polignac number, because 70751 - 2⁶ = 70687 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70753) 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, 116 + ... + 393.

It is an arithmetic number, because the mean of its divisors is an integer number (17850).

2⁷⁰⁷⁵¹ is an apocalyptic number.

70751 is a deficient number, since it is larger than the sum of its proper divisors (649).

70751 is a wasteful number, since it uses less digits than its factorization.

70751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 70751 is about 265.9906013377. The cubic root of 70751 is about 41.3597140528.

The spelling of 70751 in words is "seventy thousand, seven hundred fifty-one".