70231745 has 8 divisors (see below), whose sum is σ = 85536384. Its totient is φ = 55346544.

The previous prime is 70231741. The next prime is 70231751. The reversal of 70231745 is 54713207.

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 70231745 - 2² = 70231741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70231741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104489 + ... + 105158.

It is an arithmetic number, because the mean of its divisors is an integer number (10692048).

Almost surely, 2^70231745 is an apocalyptic number.

It is an amenable number.

70231745 is a deficient number, since it is larger than the sum of its proper divisors (15304639).

70231745 is a wasteful number, since it uses less digits than its factorization.

70231745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209719.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 70231745 is about 8380.4382343646. The cubic root of 70231745 is about 412.5828324627.

The spelling of 70231745 in words is "seventy million, two hundred thirty-one thousand, seven hundred forty-five".