70545493 has 2 divisors, whose sum is σ = 70545494. Its totient is φ = 70545492.

The previous prime is 70545469. The next prime is 70545509. The reversal of 70545493 is 39454507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66210769 + 4334724 = 8137^2 + 2082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70545493 is a prime.

It is a super-2 number, since 2×70545493² = 9953333165226098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70545403) by changing a digit.

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 as a sum of consecutive naturals, namely, 35272746 + 35272747.

It is an arithmetic number, because the mean of its divisors is an integer number (35272747).

Almost surely, 2^70545493 is an apocalyptic number.

It is an amenable number.

70545493 is a deficient number, since it is larger than the sum of its proper divisors (1).

70545493 is an equidigital number, since it uses as much as digits as its factorization.

70545493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 70545493 is about 8399.1364437066. The cubic root of 70545493 is about 413.1963003223.

The spelling of 70545493 in words is "seventy million, five hundred forty-five thousand, four hundred ninety-three".