70645045 has 4 divisors (see below), whose sum is σ = 84774060. Its totient is φ = 56516032.

The previous prime is 70645033. The next prime is 70645051. The reversal of 70645045 is 54054607.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11015761 + 59629284 = 3319^2 + 7722^2 .

It is a cyclic number.

It is not a de Polignac number, because 70645045 - 2⁹ = 70644533 is a prime.

It is a Smith number, since the sum of its digits (31) 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 = 70644998 and 70645016.

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, 7064500 + ... + 7064509.

It is an arithmetic number, because the mean of its divisors is an integer number (21193515).

Almost surely, 2^70645045 is an apocalyptic number.

It is an amenable number.

70645045 is a deficient number, since it is larger than the sum of its proper divisors (14129015).

70645045 is a wasteful number, since it uses less digits than its factorization.

70645045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14129014.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 70645045 is about 8405.0606779487. The cubic root of 70645045 is about 413.3905729927.

The spelling of 70645045 in words is "seventy million, six hundred forty-five thousand, forty-five".