70875445 has 4 divisors (see below), whose sum is σ = 85050540. Its totient is φ = 56700352.

The previous prime is 70875419. The next prime is 70875451. The reversal of 70875445 is 54457807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54457807 = 661 ⋅82387.

It can be written as a sum of positive squares in 2 ways, for example, as 49660209 + 21215236 = 7047^2 + 4606^2 .

It is a cyclic number.

It is not a de Polignac number, because 70875445 - 2¹³ = 70867253 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 70875398 and 70875407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7087540 + ... + 7087549.

It is an arithmetic number, because the mean of its divisors is an integer number (21262635).

Almost surely, 2^70875445 is an apocalyptic number.

It is an amenable number.

70875445 is a deficient number, since it is larger than the sum of its proper divisors (14175095).

70875445 is a wasteful number, since it uses less digits than its factorization.

70875445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14175094.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 70875445 is about 8418.7555493671. The cubic root of 70875445 is about 413.8394925726.

The spelling of 70875445 in words is "seventy million, eight hundred seventy-five thousand, four hundred forty-five".