70530245 has 4 divisors (see below), whose sum is σ = 84636300. Its totient is φ = 56424192.

The previous prime is 70530199. The next prime is 70530253. The reversal of 70530245 is 54203507.

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 10962721 + 59567524 = 3311^2 + 7718^2 .

It is a cyclic number.

It is not a de Polignac number, because 70530245 - 2¹⁸ = 70268101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053020 + ... + 7053029.

It is an arithmetic number, because the mean of its divisors is an integer number (21159075).

Almost surely, 2^70530245 is an apocalyptic number.

It is an amenable number.

70530245 is a deficient number, since it is larger than the sum of its proper divisors (14106055).

70530245 is a wasteful number, since it uses less digits than its factorization.

70530245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14106054.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 70530245 is about 8398.2286822877. The cubic root of 70530245 is about 413.1665281809.

The spelling of 70530245 in words is "seventy million, five hundred thirty thousand, two hundred forty-five".